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Junek M, Barra L, Kopp A, Felfeli T, Gatley J, Widdifield J. Phase Specific Health Care Costs Associated with Giant Cell Arteritis in Ontario, Canada. J Rheumatol 2024:jrheum.2023-1245. [PMID: 38561188 DOI: 10.3899/jrheum.2023-1245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
OBJECTIVE To estimate the additional health care system costs associated with giant cell arteritis (GCA) in the year pre-diagnosis, post diagnosis, and over long-term follow up compared to individuals with similar demographics and comorbidities without GCA. METHODS We performed a population-based study using health administrative data. Newly diagnosed cases of GCA (between 2002 and 2017 and ages 66 years and older) were identified using a validated algorithm and matched 1:6 to comparators using propensity scores. Follow up data was accrued until death, outmigration, or March 31, 2020. The costs associated with care were determined across three phases: the year before the diagnosis of GCA, the year after, and ongoing costs thereafter. RESULTS The cohort consisted of 6,730 cases of GCA and 40,380 matched non-GCA comparators. The average age was 77 years (interquartile range 72-82) and 68.2% were female. A diagnosis of GCA was associated with an increased cost of $6,619.4 (95% CI 5,964.9 - 7274.0) per patient during the 1-year pre-diagnostic period; $12,150.3 (95% CI 11,233.1 - 13,067.6) per patient in the 1-year post-diagnostic phase, and $20,886.2 (95% CI 17,195.2 - 24,577.2) per patient during ongoing care for year 3 onwards. Increased costs were driven by inpatient hospitalizations, physician services, hospital outpatient clinic services, and emergency department visits. CONCLUSION A diagnosis of GCA was associated with increased health care costs during all three phases of care. Given the substantial economic burden, strategies to reduce the healthcare utilization and costs associated with GCA are warranted.
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Affiliation(s)
- Mats Junek
- Mats Junek MD, McMaster University, Hamilton, Ontario, Canada
| | - Lillian Barra
- Lillian Barra MD, Department of Medicine, Epidemiology and Biostatistics, Western University, Schulich School of Medicine & Dentistry, London, Ontario, Canada; Department of Medicine, St. Joseph's Health Care London, Ontario, Canada
| | | | - Tina Felfeli
- Tina Felfeli MD, Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, Ontario, Canada; Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Jodi Gatley
- Jodi Gatley MPH, ICES, Toronto, Ontario, Canada
| | - Jessica Widdifield
- Jessica Widdifield PhD, ICES, Toronto, Ontario, Canada; Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, Ontario, Canada; Holland Bone & Joint Program, Sunnybrook Research Institute, Toronto, Ontario, Canada
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Fidler L, Widdifield J, Fisher J, Shapera S, Gershon AS. Early versus late onset interstitial lung disease in rheumatoid arthritis: An observational study of risk factors and mortality in Ontario, Canada. Respirology 2024; 29:243-251. [PMID: 38092528 DOI: 10.1111/resp.14645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 11/28/2023] [Indexed: 02/17/2024]
Abstract
BACKGROUND AND OBJECTIVE Interstitial lung disease (ILD) can occur as a manifestation of rheumatoid arthritis (RA) at various times in the disease course. We aimed to identify factors associated with early versus late onset RA-ILD and how the timing of RA-ILD influenced surgical lung biopsy completion and mortality. METHODS We performed a retrospective observational study using health services data from Ontario, Canada. We identified RA cases between 2000 and 2020 using the Ontario Rheumatoid Arthritis Database. RA-ILD diagnosis required repeat physician visits for ILD, with early RA-ILD defined as within 1 year of RA diagnosis. We performed multivariable logistic regression to identify factors associated with early RA-ILD and surgical lung biopsy completion, and multivariable cox-proportional hazards regression to evaluate the association of early versus late RA-ILD on all-cause and RA-ILD related mortality. RESULTS In total, we identified 3717 cases of RA-ILD. Older age at RA diagnosis [OR 1.04 (95%CI 1.03-1.05), p < 0.0001], female sex [OR 1.16 (95%CI 1.01-1.35), p = 0.04] and immigrating to Ontario [OR 1.70 (95%CI 1.35-2.14), p < 0.0001] was associated with early RA-ILD. Patients with early versus late RA-ILD experienced similar odds of undergoing a surgical lung biopsy [OR 1.34 (95%CI 0.83-2.16), p = 0.23]. Early RA-ILD was associated with increased all-cause mortality [HR 1.17 (95%CI 1.07-1.29), p = 0.0009], primarily driven by an increase in RA-ILD related mortality [HR 1.45 (95%CI 1.19-1.76), p = 0.0003]. CONCLUSION Age at RA onset, female sex and immigration status are associated with early RA-ILD. Patients with early RA-ILD experience increased all-cause and RA-ILD related mortality after adjusting for demographics and comorbidities.
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Affiliation(s)
- Lee Fidler
- Division of Respirology, Department of Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Division of Respirology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Division of Respirology, Department of Medicine, University Health Network, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
| | - Jessica Widdifield
- ICES, Toronto, Ontario, Canada
- Holland Bone & Joint Research Program, Sunnybrook Research Institute, Toronto, Ontario, Canada
- Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, Ontario, Canada
| | - Jolene Fisher
- Division of Respirology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Division of Respirology, Department of Medicine, University Health Network, Toronto, Ontario, Canada
| | - Shane Shapera
- Division of Respirology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Division of Respirology, Department of Medicine, University Health Network, Toronto, Ontario, Canada
| | - Andrea S Gershon
- Division of Respirology, Department of Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Division of Respirology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, Ontario, Canada
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Widdifield J, Lee JJY, Bernatsky S. Effectiveness of a fourth mRNA dose among individuals with systemic autoimmune rheumatic diseases during the Omicron era. Lancet Rheumatol 2024; 6:e3-e4. [PMID: 38258676 DOI: 10.1016/s2665-9913(23)00301-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 11/02/2023] [Indexed: 01/24/2024]
Affiliation(s)
- Jessica Widdifield
- Holland Bone & Joint Program, Sunnybrook Research Institute, Toronto, ON M4N3M5, Canada; ICES, Toronto, ON, Canada; Institute of Health Policy, Management & Evaluation, Department of Paediatrics, University of Toronto, Toronto, ON, Canada.
| | - Jennifer J Y Lee
- ICES, Toronto, ON, Canada; Division of Rheumatology, Department of Paediatrics, University of Toronto, Toronto, ON, Canada
| | - Sasha Bernatsky
- Divisions of Rheumatology and Clinical Epidemiology, Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
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4
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Kwok TSH, Kuriya B, Hawker G, Choy G, Widdifield J. Reply. Arthritis Care Res (Hoboken) 2023; 75:2540. [PMID: 37394725 DOI: 10.1002/acr.25188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 06/23/2023] [Indexed: 07/04/2023]
Affiliation(s)
| | | | - Gillian Hawker
- University of Toronto, Women's College Hospital, and University of Toronto, Toronto, Ontario, Canada
| | - Gregory Choy
- University of Toronto and Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Jessica Widdifield
- Women's College Hospital, University of Toronto, Sunnybrook Research Institute, and Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
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Kwok TSH, Kuriya B, Hawker G, Li P, Choy G, Widdifield J. Serum Urate Monitoring Among Older Adults With Gout: Initiating Urate-Lowering Therapy in Ontario, Canada. Arthritis Care Res (Hoboken) 2023; 75:2463-2471. [PMID: 37248652 DOI: 10.1002/acr.25167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 05/17/2023] [Accepted: 05/25/2023] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To assess the proportion of, and factors associated with, older adults with gout receiving a serum urate (SUA) test after starting urate-lowering therapy (ULT). METHODS We performed a population-based retrospective cohort study in Ontario, Canada in patients ages ≥66 years with gout, newly dispensed ULT between 2010 and 2019. We characterized patients with SUA testing within 6 and 12 months after ULT dispensation. Multilevel logistic regression clustered by ULT prescriber evaluated the factors associated with SUA monitoring within 6 months. RESULTS We included 44,438 patients with a mean ± SD age of 76.0 ± 7.3 years and 64.4% male. Family physicians prescribed 79.1% of all ULTs. SUA testing was lowest in 2010 (56.4% at 6 months) and rose over time to 71.3% in 2019 (P < 0.0001). Compared with rheumatologists, family physicians (odds ratio [OR] 0.26 [95% confidence interval (95% CI) 0.23-0.29]), internists (OR 0.34 [95% CI 0.29-0.39]), nephrologists (OR 0.37 [95% CI 0.30-0.45]), and other specialties (OR 0.25 [95% CI 0.21-0.29]) were less likely to test SUA, as were male physicians (OR 0.87 [95% CI 0.83-0.91]). Patient factors associated with lower odds of SUA monitoring included rural residence (OR 0.81 [95% CI 0.77-0.86]), lower socioeconomic status (OR 0.91 [95% CI 0.85-0.97]), and patient comorbidities. Chronic kidney disease, hypertension, diabetes mellitus, and coprescription of colchicine/oral corticosteroids (OR 1.31 [95% CI 1.23-1.40]) were correlated with increased SUA testing. CONCLUSION SUA testing is suboptimal among older adults with gout initiating ULT but is improving over time. ULT prescriber, patient, and prescription characteristics were correlated with SUA testing.
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Affiliation(s)
| | | | - Gillian Hawker
- University of Toronto and Women's College Hospital, Toronto, Ontario, Canada
| | - Ping Li
- ICES, Toronto, Ontario, Canada
| | - Gregory Choy
- University of Toronto and Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Jessica Widdifield
- University of Toronto, ICES, and Sunnybrook Research Institute, Toronto, Ontario, Canada
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Kheirkhah H, Hartfeld NMS, Widdifield J, Kulhawy-Wibe S, Roberts J, Yacyshyn EA, Lee JJY, Jilkine K, Jerome D, Kwok TSH, Burt J, Barber CEH. An Overview of Reviews to Inform Organization-Level Interventions to Address Burnout in Rheumatologists. J Rheumatol 2023; 50:1488-1502. [PMID: 37527857 DOI: 10.3899/jrheum.2023-0437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/13/2023] [Indexed: 08/03/2023]
Abstract
OBJECTIVE To identify organization-directed strategies that could be implemented to prevent burnout among rheumatologists. METHODS A search of English language articles published 2011 or later was conducted on Cochrane Database of Systematic Reviews, Embase, Medline, and PsycInfo on January 25, 2022. Included reviews had ≥ 1 primary studies with ≥ 10% of participants who were physicians, recorded burnout as an outcome, and described an organization-directed intervention to prevent burnout. Overlap of primary studies across reviews was assessed. The final review inclusion was determined by study quality, minimization of overlap, and maximization of intervention breadth. The A Measurement Tool to Assess Systematic Reviews (AMSTAR) 2 tool was used for quality assessment. Included studies and interventions were assessed by rheumatologists for their applicability to rheumatology. RESULTS A total of 17 reviews, including 15 systematic reviews, 1 realist review, and 1 umbrella review were included. AMSTAR 2 quality ratings classified 5 systematic reviews as low quality, 1 as moderate, and 9 as critically low. There was significant heterogeneity between and within reviews. Six conducted a metaanalysis and 11 provided a qualitative summary of findings. The following intervention types were identified as having possible applicability to rheumatology: physician workflow and organizational strategies; peer support and formal communication training; leadership support; and addressing stress, mental health, and mindfulness. Across interventions, mindfulness had the highest quality of evidence to support its effectiveness. CONCLUSION Although the quality of evidence for interventions to prevent burnout in physicians is low, promising strategies such as mindfulness have been identified.
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Affiliation(s)
- Hengameh Kheirkhah
- H. Kheirkhah, MD, N.M.S. Hartfeld, MSc, MC, S. Kulhawy-Wibe, MD, MSc, Cumming School of Medicine, University of Calgary, Calgary, Alberta
| | - Nicole M S Hartfeld
- H. Kheirkhah, MD, N.M.S. Hartfeld, MSc, MC, S. Kulhawy-Wibe, MD, MSc, Cumming School of Medicine, University of Calgary, Calgary, Alberta
| | - Jessica Widdifield
- J. Widdifield, PhD, Sunnybrook Research Institute, University of Toronto, ICES, Toronto, Ontario
| | - Stephanie Kulhawy-Wibe
- H. Kheirkhah, MD, N.M.S. Hartfeld, MSc, MC, S. Kulhawy-Wibe, MD, MSc, Cumming School of Medicine, University of Calgary, Calgary, Alberta
| | - Janet Roberts
- J. Roberts, MD, Division of Rheumatology, Department of Medicine, Dalhousie University, Halifax, Nova Scotia
| | - Elaine A Yacyshyn
- E.A. Yacyshyn, MD, MScHQ, Division of Rheumatology, Department of Medicine, University of Alberta, Edmonton, Alberta
| | - Jennifer J Y Lee
- J.J.Y. Lee, MD, MSc, Division of Rheumatology, Department of Pediatrics, University of Toronto, Toronto, Ontario
| | - Konstantin Jilkine
- K. Jilkine, MD, Section of Rheumatology, Department of Medicine, University of Manitoba, Winnipeg, Manitoba
| | - Dana Jerome
- D. Jerome, MD, MEd, T.S.H. Kwok, MD, MSc, Division of Rheumatology, Department of Medicine, University of Toronto, Toronto, Ontario
| | - Timothy S H Kwok
- D. Jerome, MD, MEd, T.S.H. Kwok, MD, MSc, Division of Rheumatology, Department of Medicine, University of Toronto, Toronto, Ontario
| | - Jennifer Burt
- J. Burt, PT, ACPAC-trained ERP, Rheumatology Services, Eastern Health, St. John's, Newfoundland and Labrador
| | - Claire E H Barber
- C.E.H. Barber, MD, PhD, Cumming School of Medicine, University of Calgary, Calgary, Alberta, and Arthritis Research Canada, Vancouver, British Columbia, Canada.
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7
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Khan R, Kuenzig ME, Tang F, Im JHB, Widdifield J, McCurdy JD, Kaplan GG, Benchimol EI. Venous Thromboembolism After COVID-19 Infection Among People With and Without Immune-Mediated Inflammatory Diseases. JAMA Netw Open 2023; 6:e2337020. [PMID: 37812417 PMCID: PMC10562941 DOI: 10.1001/jamanetworkopen.2023.37020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 08/28/2023] [Indexed: 10/10/2023] Open
Abstract
Importance Immune-mediated inflammatory diseases (IMIDs) and COVID-19 are independently associated with venous thromboembolisms (VTEs). Objective To determine if individuals with IMIDs are at higher risk of VTE following COVID-19 infection compared with individuals without IMIDs. Design, Setting, and Participants Population-based matched cohort study using multiple deterministically linked health administrative databases from Ontario, Canada, and including patients testing positive for COVID-19 between January 1, 2020, and December 30, 2021, and followed up until March 31, 2022. Individuals with IMIDs (n = 28 440) who tested positive for COVID-19 were matched with up to 5 individuals without an IMID (n = 126 437) who tested positive for COVID-19. Matching was based on year of birth, sex, neighborhood income, and rural/urban residence. Data analysis was performed from August 6, 2022, to August 21, 2023. Exposure Diagnosis of an IMID, identified using algorithms based on diagnostic codes, procedures, and specialist visits. Main Outcome and Measure The main outcome was estimated age- and sex-standardized incidence of VTE. Proportional cause-specific hazard models compared the risk of VTE in people with and without IMIDs. Death was a competing risk. Models adjusted for history of VTE, 2 or more doses of a COVID-19 vaccine 14 or more days prior to COVID-19 diagnosis, and the Charlson Comorbidity Index. Routinely collected health data were used, so the hypothesis tested was formulated after data collection but prior to being granted access to data. Results The study included 28 440 individuals (16 741 [58.9%] female; 11 699 [41.1%] male) with an IMID diagnosed prior to first COVID-19 diagnosis, with a mean (SD) age of 52.1 (18.8) years at COVID-19 diagnosis. These individuals were matched to 126 437 controls without IMIDs. The incidence of VTE within 6 months of COVID-19 diagnosis among 28 440 individuals with an IMID was 2.64 (95% CI, 2.23-3.10) per 100 000 person-days compared with 2.18 (95% CI, 1.99-2.38) per 100 000 person-days among 126 437 matched individuals without IMIDs. The VTE risk was not statistically significantly different among those with vs without IMIDs (adjusted hazard ratio, 1.12; 95% CI, 0.95-1.32). Conclusions and Relevance In this retrospective population-based cohort study of individuals with IMIDs following COVID-19, individuals with IMIDs did not have a higher risk of VTE compared with individuals without an IMID. These data provide reassurance to clinicians caring for individuals with IMIDs and COVID-19.
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Affiliation(s)
- Rabia Khan
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Ontario, Canada
- Child Health Evaluative Sciences, SickKids Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - M. Ellen Kuenzig
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Ontario, Canada
- Child Health Evaluative Sciences, SickKids Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Furong Tang
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Ontario, Canada
- Child Health Evaluative Sciences, SickKids Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
| | - James H. B. Im
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Ontario, Canada
- Child Health Evaluative Sciences, SickKids Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Jessica Widdifield
- ICES, Toronto, Ontario, Canada
- Sunnybrook Research Institute, Toronto, Ontario, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
| | - Jeffrey D. McCurdy
- Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada
- Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
- Division of Gastroenterology, The Ottawa Hospital IBD Centre, Ottawa, Ontario, Canada
| | - Gilaad G. Kaplan
- Departments of Medicine and Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Eric I. Benchimol
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, Ontario, Canada
- Child Health Evaluative Sciences, SickKids Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada
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Lee JJY, Berard R, Levy DM, Ling V, Gatley JM, Widdifield J. Supply and Services of Pediatric Rheumatologists in Ontario, Canada. J Rheumatol 2023; 50:1354-1355. [PMID: 37127318 DOI: 10.3899/jrheum.2022-1112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Affiliation(s)
- Jennifer J Y Lee
- Division of Rheumatology, Department of Paediatrics Hospital for Sick Children (SickKids), University of Toronto, Toronto;
- ICES, Toronto
| | - Roberta Berard
- Division of Rheumatology, Department of Paediatrics, Schulich School of Medicine & Dentistry, University of Western Ontario, London
| | - Deborah M Levy
- Division of Rheumatology, Department of Paediatrics Hospital for Sick Children (SickKids), University of Toronto, Toronto
| | | | | | - Jessica Widdifield
- ICES, Toronto
- Sunnybrook Research Institute, Holland Bone & Joint Research Program, Toronto
- Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, Ontario, Canada
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Kwok TSH, Kuriya B, Eder L, Aghanya V, Gatley JM, Widdifield J. Low Nirmatrelvir/Ritonavir Use Among Patients With Rheumatoid Arthritis: A Signal of Concern. J Rheumatol 2023:jrheum.2023-0439. [PMID: 37778758 DOI: 10.3899/jrheum.2023-0439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Individuals with rheumatoid arthritis (RA) may be at increased risk of severe coronavirus disease 2019 (COVID-19) outcomes.1 Nirmatrelvir/ritonavir has been shown to reduce the risk for hospitalization and death among patients with COVID-19 at risk for progression to severe disease.2.
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Affiliation(s)
- Timothy S H Kwok
- Timothy S.H. Kwok, MD, MSc, Division of Rheumatology, Department of Medicine, University of Toronto
| | - Bindee Kuriya
- Bindee Kuriya, MD, SM, Division of Rheumatology, Department of Medicine, University of Toronto; Institute of Health Policy, Management & Evaluation, University of Toronto
| | - Lihi Eder
- Lihi Eder, MD, PhD, Division of Rheumatology, Department of Medicine, University of Toronto; Women's College Research Institute, Women's College Hospital, University of Toronto; Institute of Medical Science, University of Toronto
| | | | | | - Jessica Widdifield
- Jessica Widdifield, PhD, Institute of Health Policy, Management & Evaluation, University of Toronto; ICES; Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto, Ontario, Canada
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10
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Lee JJY, Bernatsky S, Kwong JC, Li Q, Kwok TSH, Widdifield J. Safety and Health Care Use Following COVID-19 Vaccination Among Adults With Rheumatoid Arthritis: A Population-Based Self-Controlled Case Series Analysis. J Rheumatol 2023:jrheum.2023-0355. [PMID: 37778762 DOI: 10.3899/jrheum.2023-0355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
OBJECTIVE To determine if coronavirus disease 2019 (COVID-19) vaccines were associated with adverse events of special interest (AESIs) and healthcare use among adults with rheumatoid arthritis (RA). METHODS Among adults with RA who received at least 1 COVID-19 vaccine, a self-controlled case series (SCCS) analysis was conducted to evaluate relative incidence (RI) rates of AESIs (Bell palsy, idiopathic thrombocytopenia, acute disseminated encephalomyelitis, pericarditis/myocarditis, Guillain-Barré syndrome, transverse myelitis, myocardial infarction, anaphylaxis, stroke, deep vein thrombosis, pulmonary embolism, narcolepsy, appendicitis, and disseminated intravascular coagulation) in any 21-day period following vaccination compared to control periods. Secondary outcomes included emergency department (ED) visits, hospitalizations, and rheumatology visits. A matched non-RA comparator group was created and a separate SCCS analysis was conducted. RI ratios (RIRs) were used to compare RA and non-RA groups. RESULTS Among 123,466 patients with RA and 493,864 comparators, the majority received mRNA vaccines. For patients with RA, relative to control periods, AESIs were not increased. ED visits increased after dose 2 (RI 1.06, 95% CI 1.03-1.10) and decreased after dose 3 (RI 0.93, 95% CI 0.89-0.96). Hospitalizations were lower after the first (RI 0.83, 95% CI 0.78-0.88), second (RI 0.86, 95% CI 0.81-0.92), and third (RI 0.89, 95% CI 0.83-0.95) doses. Rheumatology visits increased after dose 1 (RI 1.08, 95% CI 1.07-1.10), and decreased after doses 2 and 3. Relative to comparators, patients with RA had a higher AESI risk after dose 3 (RIR 1.28, 95% CI 1.05-1.56). Patients with RA experienced fewer ED visits (RIR 0.73, 95% CI 0.58-0.90) and hospitalizations (RIR 0.52, 95% CI 0.36-0.75) after dose 4. CONCLUSION COVID-19 vaccines in patients with RA were not associated with an increase in AESI risk or healthcare use after every dose.
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Affiliation(s)
| | - Sasha Bernatsky
- S. Bernatsky, MD, PhD, Division of Rheumatology and Clinical Epidemiology, Department of Medicine, McGill University Health Centre, Montreal, Quebec
| | - Jeffrey C Kwong
- J.C. Kwong, MD, MSc, ICES, and Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario
| | - Qing Li
- Q. Li, MMath, ICES, Toronto, Ontario
| | - Timothy S H Kwok
- T.S.H. Kwok, MD, MSc, Department of Medicine, University of Toronto, and ICES, Toronto, Ontario
| | - Jessica Widdifield
- J. Widdifield, PhD, Sunnybrook Research Institute, and ICES, and Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
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11
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Eder L, Lee KA, Chandran V, Widdifield J, Drucker AM, Ritchlin C, Rosen CF, Cook RJ, Gladman DD. Derivation of a Multivariable Psoriatic Arthritis Risk Estimation Tool (PRESTO): A Step Towards Prevention. Arthritis Rheumatol 2023. [PMID: 37555242 DOI: 10.1002/art.42661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/28/2023] [Accepted: 06/14/2023] [Indexed: 08/10/2023]
Abstract
OBJECTIVE A simple, scalable tool that identifies psoriasis patients at high risk for developing psoriatic arthritis (PsA) could improve early diagnosis. We aimed to develop a risk prediction model for the development of PsA and to assess its performance among patients with psoriasis. METHODS We analyzed data from a prospective cohort of psoriasis patients without PsA at enrollment. Participants were assessed annually by a rheumatologist for the development of PsA. Information about their demographics, psoriasis characteristics, comorbidities, medications, and musculoskeletal symptoms was used to develop prediction models for PsA. Penalized binary regression models were used for variable selection while adjusting for psoriasis duration. Risks of developing PsA over 1- and 5-year time periods were estimated. Model performance was assessed by the area under the curve (AUC) and calibration plots. RESULTS Among 635 psoriasis patients, 51 and 71 developed PsA during the 1-year and 5-year follow-up periods, respectively. The risk of developing PsA within 1 year was associated with younger age, male sex, family history of psoriasis, back stiffness, nail pitting, joint stiffness, use of biologic medications, patient global health, and pain severity (AUC 72.3). The risk of developing PsA within 5 years was associated with morning stiffness, psoriatic nail lesion, psoriasis severity, fatigue, pain, and use of systemic nonbiologic medication or phototherapy (AUC 74.9). Calibration plots showed reasonable agreement between predicted and observed probabilities. CONCLUSIONS The development of PsA within clinically meaningful time frames can be predicted with reasonable accuracy for psoriasis patients using readily available clinical variables.
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Affiliation(s)
- Lihi Eder
- Women's College Research Institute, Women's College Hospital, Toronto, Ontario, Canada, and Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Ker-Ai Lee
- Department of Statistics and Actuarial Science, University of Waterloo, Waterloo, Ontario, Canada
| | - Vinod Chandran
- Department of Medicine, University of Toronto, and Schroder Arthritis Institute, Krembil Research Institute, Toronto Western Hospital, Toronto, Ontario, Canada
| | - Jessica Widdifield
- Sunnybrook Research Institute, Sunnybrook Hospital, and Institute for Clinical Evaluative Sciences (ICES), and Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
| | - Aaron M Drucker
- Women's College Research Institute, Women's College Hospital, and Department of Medicine, University of Toronto, and ICES, and Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
| | | | - Cheryl F Rosen
- Department of Medicine, University of Toronto, and Schroder Arthritis Institute, Krembil Research Institute, Toronto Western Hospital, Toronto, Ontario, Canada
| | - Richard J Cook
- Department of Statistics and Actuarial Science, University of Waterloo, Waterloo, Ontario, Canada
| | - Dafna D Gladman
- Department of Medicine, University of Toronto, and Schroder Arthritis Institute, Krembil Research Institute, Toronto Western Hospital, Toronto, Ontario, Canada
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12
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Fidler L, Widdifield J, Fisher JH, Shapera S, Gershon AS. Rheumatoid arthritis associated interstitial lung disease: Trends in epidemiology and mortality in Ontario from 2000-2018. Respir Med 2023:107282. [PMID: 37187431 DOI: 10.1016/j.rmed.2023.107282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/22/2023] [Accepted: 05/12/2023] [Indexed: 05/17/2023]
Abstract
BACKGROUND The epidemiology and mortality of rheumatoid arthritis related interstitial lung disease (RA-ILD) have not been described in Canada. Our aim was to describe recent trends in RA-ILD prevalence, incidence, and mortality in Ontario, Canada. METHODS This was a retrospective population-based study using repeated cross-sections from 2000 to 2018. We estimated annual age- and sex-standardized rates for RA-ILD prevalence, incidence and mortality. RESULTS Among 184,400 RA patients identified between 2000 and 2018, 5722 (3.1%) were diagnosed with RA-ILD. Most RA-ILD patients were women (63.9%) and ≥60 years old (76.9%) at the time of RA-ILD diagnosis. RA-ILD incidence rose from 1.6 (95% confidence interval (CI) 1.3-2.0) to 3.3 (95% CI 3.0-3.6) per 1000 RA patients (204% relative increase, p < 0.0001) during this time. RA-ILD incidence increased in both sexes and all age groups over time. The cumulative prevalence of RA-ILD increased from 8.4 (95% CI 7.6-9.2) to 21.1 (95% CI 20.3-21.8) per 1000 RA patients (250% relative increase, p < 0.0001), increasing in both sexes and all age groups. All-cause and RA-ILD related mortality declined in patients with RA-ILD over time [55.1% relative reduction, (p < 0.0001) and 70.9% relative reduction, (p < 0.0001), respectively]. In RA-ILD patients, RA-ILD contributed to the cause of death in approximately 29% of cases. Men and older patients had higher all-cause and RA-ILD related mortality. CONCLUSION In a large, diverse Canadian population, the incidence and prevalence of RA-ILD are increasing. RA-ILD related mortality is declining, but remains an important cause of death in this population.
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Affiliation(s)
- Lee Fidler
- Division of Respirology, Department of Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Division of Respirology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Division of Respirology, Department of Medicine, University Health Network, Toronto, Ontario, Canada.
| | - Jessica Widdifield
- ICES, Toronto, Ontario, Canada; The Holland Bone & Joint Research Program, Sunnybrook Research Institute, Toronto, Ontario, Canada; The Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, Canada
| | - Jolene H Fisher
- Division of Respirology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Division of Respirology, Department of Medicine, University Health Network, Toronto, Ontario, Canada
| | - Shane Shapera
- Division of Respirology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada; Division of Respirology, Department of Medicine, University Health Network, Toronto, Ontario, Canada
| | - Andrea S Gershon
- Division of Respirology, Department of Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Division of Respirology, Department of Medicine, University of Toronto, Toronto, Ontario, Canada; ICES, Toronto, Ontario, Canada; The Holland Bone & Joint Research Program, Sunnybrook Research Institute, Toronto, Ontario, Canada
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13
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Zhao N, Smargiassi A, Chen H, Widdifield J, Bernatsky S. Systemic autoimmune rheumatic diseases and multiple industrial air pollutant emissions: A large general population Canadian cohort analysis. Environ Int 2023; 174:107920. [PMID: 37068387 DOI: 10.1016/j.envint.2023.107920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 03/13/2023] [Accepted: 04/04/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND Past investigations of air pollution and systemic autoimmune rheumatic diseases (SARDs) typically focused on individual (not mixed) and overall environmental emissions. We assessed mixtures of industrial emissions of fine particulate matter (PM2.5), nitrogen dioxide (NO2), and sulfur dioxide (SO2) and SARDs onset in Ontario, Canada. METHODS We assembled an open cohort of over 12 million adults (without SARD diagnoses at cohort entry) based on provincial health data for 2007-2020 and followed them until SARD onset, death, emigration, or end of study (December 2020). SARDs were identified using physician billing and hospitalization diagnostic codes for systemic lupus, scleroderma, myositis, undifferentiated connective tissue disease, and Sjogren's. Rheumatoid arthritis and vasculitis were not included. Average PM2.5, NO2, and SO2 industrial emissions from 2002 to one year before SARDs onset or end of study were assigned using residential postal codes. A quantile g-computation model for time to SARD onset was developed for the industrial emission mixture, adjusting for sex, age, income, rurality index, chronic obstructive pulmonary disease (as a proxy for smoking), background (environmental overall) PM2.5, and calendar year. We conducted stratified analyses across age, sex, and rurality. RESULTS We identified 43,931 new SARD diagnoses across 143,799,564 person-years. The adjusted hazard ratio for SARD onset for an increase in all emissions by one decile was 1.018 (95% confidence interval 1.013-1.022). Similar positive associations between SARDs and the mixed emissions were observed in most stratified analyses. Industrial PM2.5 contributed most to SARD risk. CONCLUSIONS Industrial air pollution emissions were associated with SARDs risk.
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Affiliation(s)
- Naizhuo Zhao
- Center for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre, Montreal, QC, Canada
| | - Audrey Smargiassi
- Département de Santé Environnementale et Santé au Travail, School of Public Health, Université de Montréal, Montréal, QC, Canada; Institut National de Santé Publique du Québec, Montréal, QC, Canada; Centre of Public Health Research, University of Montreal and CIUSSS du Centre-Sud-de-l'Île-de-Montréal, Montreal, QC, Canada
| | - Hong Chen
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada; ICES, Toronto, ON, Canada; Public Health Ontario, Toronto, ON, Canada; Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - Jessica Widdifield
- ICES, Toronto, ON, Canada; Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada; Institute of Health Policy, Management, & Evaluation, University of Toronto, Toronto, ON, Canada
| | - Sasha Bernatsky
- Center for Outcomes Research and Evaluation, Research Institute of the McGill University Health Centre, Montreal, QC, Canada; Divisions of Rheumatology and Clinical Epidemiology, Department of Medicine, McGill University, Montreal, QC, Canada.
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14
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Khan R, Kuenzig E, Tang A, Im J, Widdifield J, McCurdy J, Kaplan G, Benchimol E. A177 RISK OF VENOUS THROMBOEMBOLISM IN COVID-19 PATIENTS WITH INFLAMMATORY BOWEL DISEASE: A POPULATION-BASED MATCHED COHORT STUDY. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991269 DOI: 10.1093/jcag/gwac036.177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Background Venous thromboembolism (VTE), is associated with significant morbidity and mortality. Inflammation increases the risk of VTE, and it is a well-recognised complication of both inflammatory bowel disease (IBD) and COVID-19. Purpose To compare the risk of VTE among individuals with and without IBD following a positive COVID-19 test. Method Using health administrative data from Ontario, Canada we conducted a retrospective matched cohort study.All Ontario residents with a positive SARS-CoV-2 PCR test between January 1,2020 and December 30,2021 who had been diagnosed with IBD prior to their COVID-19 infection (identified using a validated algorithm) were matched to 5 individuals without IBD based on year of birth, sex, mean neighbourhood income quintile, date of positive COVID-19 test, and rural/urban residence. Individuals with a cancer diagnosis in the 5 years prior to their first COVID-19 positive test were excluded. Individuals were followed from positive COVID-19 PCR test until VTE event, death, migration out of Ontario or March 31, 2022.VTEs were identified from emergency department or hospitalization data using ICD-10 codes. Incidence rate of VTEs among individuals with IBD were assessed at 1, 6 and 12 months. Proportional cause-specific hazards models compared the risk of VTEs in people with and without IBD, treating death as a competing risk and controlling for vaccination status (2nd dose ≥14 days prior to positive COVID-19 test) and a history of VTE (VTE in the 5 years prior to infection). Result(s) There were 4293 people with IBD (44% Crohn’s disease, mean age ±SD 46.1±17.2 y) matched to 20,207 with out IBD (mean age 45.3±16.8 y) with a positive SARS-CoV-2 PCR test. Within 1 month of a positive COVID-19 test, the crude incidence rate of VTE in individuals with IBD was 4.77(95%CI, 4.75-4.80) per 100,000 person-days compared to 8.25(95%CI, 8.20-8.30) per 100,000 among people without IBD.Within 6 months, these rates were 1.86(95%CI, 1.86-1.87) and 2.12(95%CI, 2.11-2.12) per 100,000 person-days among people with and without IBD, respectivley. Within 12 months, these rates were 1.59(95% CI, 1.58-1.59) and 1.42(95% CI, 1.42-1.42) per 100,000 person-days among people with and without IBD, respectively.After adjusting for vaccination status and history of VTE there was no difference in the risk of VTE for people with and without IBD (HR 1.08, 95%CI, 0.64 to 1.83). Conclusion(s) IBD patients with COVID-19 were not more likely to experience a VTE infection compared with the general popluation. The risk of VTE was highest soon after COVID-19 and declined thereafter. Please acknowledge all funding agencies by checking the applicable boxes below None Disclosure of Interest None Declared
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Affiliation(s)
- R Khan
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, Department of Paediatrics, The Hospital for Sick Children, University of Toronto,ICES
| | - E Kuenzig
- Child Health Evaluative Sciences, SickKids Research Institute
| | - A Tang
- Child Health Evaluative Sciences, SickKids Research Institute
| | - J Im
- Child Health Evaluative Sciences, SickKids Research Institute
| | - J Widdifield
- ICES,Institute of Health Policy, Management and Evaluation, University of Toronto
| | - J McCurdy
- Department of Medicine, University of Ottawa, Ottawa, Canada
| | - G Kaplan
- Department of Medicine and Community Health Sciences, University of Calgary, Toronto, Canada
| | - E Benchimol
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, Department of Paediatrics, The Hospital for Sick Children, University of Toronto,ICES,Child Health Evaluative Sciences, SickKids Research Institute,Institute of Health Policy, Management and Evaluation, University of Toronto
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15
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Tarannum S, Widdifield J, Wu CF, Johnson SR, Rochon P, Eder L. Understanding sex-related differences in healthcare utilisation among patients with inflammatory arthritis: a population-based study. Ann Rheum Dis 2023; 82:283-291. [PMID: 36130810 PMCID: PMC9887399 DOI: 10.1136/ard-2022-222779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 08/25/2022] [Indexed: 02/03/2023]
Abstract
OBJECTIVES Our aim was to compare patterns of musculoskeletal-related healthcare utilisation between male and female patients before and after the diagnosis of inflammatory arthritis (IA). METHODS We used Ontario administrative health data to create three inception cohorts of adult patients with rheumatoid arthritis (RA), ankylosing spondylitis (AS) and psoriatic arthritis (PsA) diagnosed between April 2010 and March 2017. Healthcare utilisation indicators including visits to physicians, and use of musculoskeletal imaging and laboratory tests were assessed in each year for 3 years before and after diagnosis and compared between male and female patients using regression models adjusting for sociodemographic factors and comorbidities. Results were reported as ORs with 95% CIs for female patients compared with male patients. RESULTS A total of 41 277 patients with RA (69% female), 8150 patients with AS (51% female) and 6446 patients with PsA (54% female) were analysed.Similar trends of sex-related differences were observed in all three cohorts. Before diagnosis, female patients were more likely to visit rheumatologists (OR 1.32-2.28) and family physicians (OR 1.03-1.15) for musculoskeletal reasons, whereas male patients were more likely to visit the emergency for musculoskeletal reasons (OR 0.76-0.87). A similar female predominance was observed regarding musculoskeletal imaging and laboratory tests before diagnosis. After diagnosis, female patients were more likely to remain in rheumatology care (OR 1.12-1.24). CONCLUSION Female patients with IA have higher healthcare utilisation than male patients which may indicate biological differences in disease course or sociocultural differences in healthcare-seeking behaviour.
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Affiliation(s)
- Sanjana Tarannum
- Depetment of Medieine and Women's College Research Institute, Women's College Hospital, Toronto, Ontario, Canada,Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | - Jessica Widdifield
- Sunnybrook Research Institute, Sunnybrook Hospital, Toronto, Ontario, Canada,Institute for Clinical Evaluative Sciences, Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
| | - C Fangyun Wu
- Institute for Clinical Evaluative Sciences, Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
| | - Sindhu R Johnson
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada,Department of Medicine, University of Toronto, Toronto, Ontario, Canada,Division of Rheumatology, Department of Medicine, Toronto Western and Mount Sinai Hospitals, Toronto, Ontario, Canada
| | - Paula Rochon
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada,Department of Medicine, University of Toronto, Toronto, Ontario, Canada,Department of Geriatrics, Women’s Age Lab; Women’s College Research Institute, Women's College Hospital, Toronto, Ontario, Canada
| | - Lihi Eder
- Depetment of Medieine and Women's College Research Institute, Women's College Hospital, Toronto, Ontario, Canada,Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada,Department of Medicine, University of Toronto, Toronto, Ontario, Canada
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16
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Davtyan A, Lee JJY, Eder L, Hawker GA, Luo J, Barber CEH, Thorne JC, Widdifield J. The Effects of Continuity of Rheumatology Care on Emergency Department Utilization and Hospitalizations for Individuals With Early Rheumatoid Arthritis: A Population-Based Study. J Rheumatol 2023:jrheum.220996. [PMID: 36725062 DOI: 10.3899/jrheum.220996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To determine if continuity of rheumatology care influences rates of emergency department (ED) visits and hospitalizations in patients with rheumatoid arthritis (RA). METHODS A closed inception cohort of patients with RA diagnosed between 2000 and 2009 were followed until December 31, 2019. During the first 5 years following diagnosis, we categorized patients into 3 rheumatology care continuity groups (high, intermediate, and not retained in rheumatology care). Using a landmark analysis, we compared rates of ED visits and hospitalizations during follow-up. Multivariable Poisson regression models were used to estimate rate ratios (RRs), adjusting for demographics, comorbidities, and health services access and supply measures. RESULTS The cohort included 38,528 patients, of which 57.7% (n = 22,221) were classified in the high rheumatology continuity group, 17.2% (n = 6636) were in the intermediate group, and 25.1% (n = 9671) were not retained in rheumatology care. Relative to the high continuity group, both the intermediate and nonretention groups had higher ED rates (RR 1.14, 95% CI 1.08-1.20, and RR 1.12, 95% CI 1.08-1.16, respectively). The intermediate group also experienced higher adjusted hospitalization rates (207.4, 95% CI 203.0-211.8 per 1000 person-years [PY]) than the high continuity group (193.5, 95% CI 191.4-195.6 per 1000 PY). CONCLUSION Patients with RA with higher continuity of rheumatology care had lower rates of ED visits and hospitalizations compared to those who did not receive continuous rheumatology care during the first 5 years of follow-up. These findings provide evidence to support the value of early and continuous rheumatology care for reducing hospitalizations and ED visits.
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Affiliation(s)
- Abel Davtyan
- A. Davtyan, MSc, Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario
| | - Jennifer J Y Lee
- J.J.Y. Lee, MD, MSc, University of Toronto, Department of Medicine, Toronto, The Hospital for Sick Children (SickKids), Toronto, and ICES, Toronto, Ontario
| | - Lihi Eder
- L. Eder, MD, PhD, Department of Medicine, University of Toronto, and Women's College Hospital Research Institute, Toronto, Ontario
| | - Gillian A Hawker
- G.A Hawker, MD, MSc, Institute of Health Policy, Management, & Evaluation, University of Toronto, Department of Medicine, University of Toronto, ICES, Toronto, and Women's College Hospital Research Institute, Toronto, Ontario
| | - Jin Luo
- J. Luo, MSc, ICES, Toronto, Ontario
| | - Claire E H Barber
- C.E.H. Barber, MD, PhD, The Cumming School of Medicine, University of Calgary, Alberta, and Arthritis Research Canada, Vancouver, British Columbia
| | - J Carter Thorne
- J.C. Thorne, MD, Southlake Regional Health Centre, Newmarket, Ontario
| | - Jessica Widdifield
- J. Widdifield, PhD, Institute of Health Policy, Management, & Evaluation, University of Toronto, Toronto, ICES, Toronto, and Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto, Ontario, Canada
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17
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Barber CEH, Lacaille D, Croxford R, Barnabe C, Marshall DA, Abrahamowicz M, Xie H, Aviña-Zubieta JA, Esdaile JM, Hazlewood GS, Faris P, Katz S, MacMullan P, Mosher D, Widdifield J. Investigating Associations Between Access to Rheumatology Care, Treatment, Continuous Care, and Healthcare Utilization and Costs Among Older Individuals With Rheumatoid Arthritis. J Rheumatol 2023; 50:617-624. [PMID: 36642438 DOI: 10.3899/jrheum.220729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2022] [Indexed: 01/16/2023]
Abstract
OBJECTIVE To examine the association between rheumatologist access, early treatment, and ongoing care of older-onset rheumatoid arthritis (RA) and healthcare utilization and costs following diagnosis. METHODS We analyzed data from a population-based inception cohort of individuals aged > 65 years with RA in Ontario, Canada, diagnosed between 2002 and 2014 with follow-up to 2019. We assessed 4 performance measures in the first 4 years following diagnosis, including access to rheumatology care, yearly follow-up, timely treatment, and ongoing treatment with a disease-modifying antirheumatic drug. We examined annual healthcare utilization, mean direct healthcare costs, and whether the performance measures were associated with costs in year 5. RESULTS A total of 13,293 individuals met inclusion criteria. The mean age was 73.7 (SD 5.7) years and 68% were female. Total mean direct healthcare cost per individual increased annually and was CAD $13,929 in year 5. All 4 performance measures were met for 35% of individuals. In multivariable analyses, costs for not meeting access to rheumatology care and timely treatment performance measures were 20% (95% CI 8-32) and 6% (95% CI 1-12) higher, respectively, than where those measures were met. The main driver of cost savings among individuals meeting all 4 performance measures were from lower complex continuing care, home care, and long-term care costs, as well as fewer hospitalizations and emergency visits. CONCLUSION Access to rheumatologists for RA diagnosis, timely treatment, and ongoing care are associated with lower total healthcare costs at 5 years. Investments in improving access to care may be associated with long-term health system savings.
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Affiliation(s)
- Claire E H Barber
- C.E.H. Barber, MD, PhD, Departments of Medicine and Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, and Arthritis Research Canada, Vancouver, British Columbia
| | - Diane Lacaille
- D. Lacaille, MD, MHSc,, Department of Medicine, University of British Columbia, and Arthritis Research Canada, Vancouver, British Columbia
| | | | - Cheryl Barnabe
- C. Barnabe, MD, MSc, Departments of Medicine and Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, and Arthritis Research Canada, Vancouver, British Columbia
| | - Deborah A Marshall
- D.A. Marshall, PhD, Departments of Medicine and Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, and Arthritis Research Canada, Vancouver, British Columbia
| | - Michal Abrahamowicz
- M. Abrahamowicz, PhD, Department of Epidemiology & Biostatistics, McGill University, Montreal, Quebec, and Arthritis Research Canada, Vancouver, British Columbia
| | - Hui Xie
- H. Xie, PhD, Faculty of Health Sciences, Simon Fraser University, Burnaby, and Arthritis Research Canada, Vancouver, British Columbia
| | - J Antonio Aviña-Zubieta
- J.A. Aviña-Zubieta, MD, PhD, Department of Medicine, University of British Columbia, and Arthritis Research Canada, Vancouver, British Columbia
| | - John M Esdaile
- J.M. Esdaile, MD, MPH, Department of Medicine, University of British Columbia, and Arthritis Research Canada, Vancouver, British Columbia
| | - Glen S Hazlewood
- G.S. Hazlewood, MD, PhD, Departments of Medicine and Community Health Sciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, and Arthritis Research Canada, Vancouver, British Columbia
| | - Peter Faris
- P. Faris, PhD, Alberta Health Services, Calgary, Alberta
| | - Steven Katz
- S. Katz, MD, Department of Medicine, University of Alberta, Edmonton, Alberta
| | - Paul MacMullan
- P. MacMullan, MB BCh BAO, MRCPI, MD, Department of Medicine, University of Calgary, Calgary, Alberta
| | - Dianne Mosher
- D. Mosher MD, Department of Medicine, University of Calgary, Calgary, Alberta
| | - Jessica Widdifield
- J. Widdifield, PhD, Holland Bone & Joint Program, Sunnybrook Research Institute, and ICES, and Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, Ontario, Canada
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18
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Barber CEH, Lacaille D, Croxford R, Barnabe C, Marshall DA, Abrahamowicz M, Xie H, Avina-Zubieta JA, Esdaile JM, Hazlewood G, Faris P, Katz S, MacMullan P, Mosher D, Widdifield J. System-level performance measures of access to rheumatology care: a population-based retrospective study of trends over time and the impact of regional rheumatologist supply in Ontario, Canada, 2002-2019. BMC Rheumatol 2022; 6:86. [PMID: 36572934 PMCID: PMC9793576 DOI: 10.1186/s41927-022-00315-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 10/25/2022] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVE To determine whether there were improvements in rheumatology care for rheumatoid arthritis (RA) between 2002 and 2019 in Ontario, Canada, and to evaluate the impact of rheumatologist regional supply on access. METHODS We conducted a population-based retrospective study of all individuals diagnosed with RA between January 1, 2002 and December 31, 2019. Performance measures evaluated were: (i) percentage of RA patients seen by a rheumatologist within one year of diagnosis; and (ii) percentage of individuals with RA aged 66 years and older (whose prescription drugs are publicly funded) dispensed a disease modifying anti-rheumatic drug (DMARD) within 30 days after initial rheumatologist visit. Logistic regression was used to assess whether performance improved over time and whether the improvements differed by rheumatology supply, dichotomized as < 1 rheumatologist per 75,000 adults versus ≥1 per 75,000. RESULTS Among 112,494 incident RA patients, 84% saw a rheumatologist within one year: The percentage increased over time (adjusted odds ratio (OR) 2019 vs. 2002 = 1.43, p < 0.0001) and was consistently higher in regions with higher rheumatologist supply (OR = 1.73, 95% CI 1.67-1.80). Among seniors who were seen by a rheumatologist within 1 year of their diagnosis the likelihood of timely DMARD treatment was lower among individuals residing in regions with higher rheumatologist supply (OR = 0.90 95% CI 0.83-0.97). These trends persisted after adjusting for other covariates. CONCLUSION While access to rheumatologists and treatment improved over time, shortcomings remain, particularly for DMARD use. Patients residing in regions with higher rheumatology supply were more likely to access care but less likely to receive timely treatment.
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Affiliation(s)
- Claire E. H. Barber
- grid.22072.350000 0004 1936 7697Department of Medicine, University of Calgary, Calgary, AB Canada ,grid.22072.350000 0004 1936 7697Department of Community Health Sciences, University of Calgary, AB Calgary, Canada ,grid.22072.350000 0004 1936 7697McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB Canada ,Arthritis Research Canada, Vancouver, BC Canada
| | - Diane Lacaille
- Arthritis Research Canada, Vancouver, BC Canada ,grid.17091.3e0000 0001 2288 9830Department of Medicine, University of British Columbia, Vancouver, BC Canada
| | - Ruth Croxford
- grid.418647.80000 0000 8849 1617ICES, Toronto, Canada
| | - Cheryl Barnabe
- grid.22072.350000 0004 1936 7697Department of Medicine, University of Calgary, Calgary, AB Canada ,grid.22072.350000 0004 1936 7697Department of Community Health Sciences, University of Calgary, AB Calgary, Canada ,grid.22072.350000 0004 1936 7697McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB Canada ,Arthritis Research Canada, Vancouver, BC Canada
| | - Deborah A. Marshall
- grid.22072.350000 0004 1936 7697Department of Medicine, University of Calgary, Calgary, AB Canada ,grid.22072.350000 0004 1936 7697Department of Community Health Sciences, University of Calgary, AB Calgary, Canada ,grid.22072.350000 0004 1936 7697McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB Canada ,Arthritis Research Canada, Vancouver, BC Canada
| | - Michal Abrahamowicz
- Arthritis Research Canada, Vancouver, BC Canada ,grid.14709.3b0000 0004 1936 8649Department of Epidemiology and Biostatistics, McGill University, Montreal, QC Canada
| | - Hui Xie
- Arthritis Research Canada, Vancouver, BC Canada ,grid.61971.380000 0004 1936 7494Faculty of Health Sciences, Simon Fraser University, Burnaby, BC Canada
| | - J. Antonio Avina-Zubieta
- Arthritis Research Canada, Vancouver, BC Canada ,grid.17091.3e0000 0001 2288 9830Department of Medicine, University of British Columbia, Vancouver, BC Canada
| | - John M. Esdaile
- Arthritis Research Canada, Vancouver, BC Canada ,grid.17091.3e0000 0001 2288 9830Department of Medicine, University of British Columbia, Vancouver, BC Canada
| | - Glen Hazlewood
- grid.22072.350000 0004 1936 7697Department of Medicine, University of Calgary, Calgary, AB Canada ,grid.22072.350000 0004 1936 7697Department of Community Health Sciences, University of Calgary, AB Calgary, Canada ,grid.22072.350000 0004 1936 7697McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB Canada ,Arthritis Research Canada, Vancouver, BC Canada
| | - Peter Faris
- grid.413574.00000 0001 0693 8815Alberta Health Services, Calgary, AB Canada
| | - Steven Katz
- grid.17089.370000 0001 2190 316XDepartment of Medicine, University of Alberta, Edmonton, AB Canada
| | - Paul MacMullan
- grid.22072.350000 0004 1936 7697Department of Medicine, University of Calgary, Calgary, AB Canada
| | - Dianne Mosher
- grid.22072.350000 0004 1936 7697Department of Medicine, University of Calgary, Calgary, AB Canada
| | - Jessica Widdifield
- grid.418647.80000 0000 8849 1617ICES, Toronto, Canada ,grid.17063.330000 0001 2157 2938Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada ,grid.17063.330000 0001 2157 2938Holland Bone and Joint Program, Sunnybrook Research Institute, Toronto, Canada
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Kwok TSH, Kuriya B, King LK, Eder L, Thorne C, Li Z, Stukel T, Fu L, Kopp A, Widdifield J. Changes in service delivery and access to rheumatologists pre- and during the COVID-19 pandemic in a Canadian universal healthcare setting. J Rheumatol 2022:jrheum.220658. [PMID: 36182116 DOI: 10.3899/jrheum.220658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To describe changes in service delivery and access to rheumatologists pre- and during the COVID-19 pandemic periods. METHODS We conducted a population-based study in Ontario, Canada. Patient visits with rheumatologists were ascertained using billing claims data. Contacts with rheumatologists were separately defined by the type of patient encounter (including office visits, telemedicine visits, and new patient consultations). Changes in the total weekly volume of encounters and monthly rates after COVID-19 public health measures were imposed were compared to expected baseline rates determined before pandemic onset (March 17, 2020). RESULTS In the year prior to the pandemic, there were 289,202 patients (of which 99,641 were new consults) seen by 239 rheumatologists. In the 1 year following the pandemic onset, there were 276,686 patients (of which 88,777 were new consults) seen by 247 rheumatologists. In March 2020, there was an immediate 75.9% decrease in outpatient office visits and a rapid rise in telemedicine visits. By September 2021, 49.7% of patient encounters remained telemedicine visits. For new patient consultations, there was an immediate 50% decrease in visits at the pandemic onset, with 54.8% diverted to telemedicine visits in the first year of the pandemic versus 37.5% by September 2021. New rheumatology consultation rates continued decreasing over the study period. CONCLUSION Rheumatology care delivery has shifted due to the pandemic, with telemedicine sharply increasing early in the pandemic and persisting over time. The pandemic also negatively impacted access to rheumatologists resulting in fewer new consultations, raising concerns for potential delays to diagnosis.
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Affiliation(s)
- Timothy S H Kwok
- Division of Rheumatology, Department of Medicine, University of Toronto, Canada; Institute of Health Policy, Management & Evaluation, University of Toronto, Canada; Women's College Research Institute, Women's College Hospital, University of Toronto, Toronto, Canada; Institute of Medical Science, University of Toronto; Southlake Regional Health Centre, Newmarket; University of Toronto, Canada; ICES, Toronto, Canada; Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto, Canada. Funding: This study was funded by the Canadian Rheumatology Association Canadian Initiative for Outcomes in Rheumatology cAre (CIORA). The study is supported by ICES (formerly known as the Institute for Clinical Evaluative Sciences), which is funded by the Ontario Ministry of Health (MOH) and the Ministry of Long-Term Care (MLTC). Parts of this material are based on data and information compiled and provided by the MOH. The opinions, results and conclusions reported in this paper are those of the authors and are independent of the data sources; no endorsement is intended or should be inferred. Kwok is supported by the Canada Graduate Scholarship from the Canadian Institutes of Health Research. Eder is Canada Research Chair (Tier 2) in Equity in Care of Rheumatic Disorders. Widdifield receives support from the Arthritis Society Stars Career Development Award (STAR-19-0610). Conflict of interest: none. Corresponding Author: Jessica Widdifield, Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
| | - Bindee Kuriya
- Division of Rheumatology, Department of Medicine, University of Toronto, Canada; Institute of Health Policy, Management & Evaluation, University of Toronto, Canada; Women's College Research Institute, Women's College Hospital, University of Toronto, Toronto, Canada; Institute of Medical Science, University of Toronto; Southlake Regional Health Centre, Newmarket; University of Toronto, Canada; ICES, Toronto, Canada; Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto, Canada. Funding: This study was funded by the Canadian Rheumatology Association Canadian Initiative for Outcomes in Rheumatology cAre (CIORA). The study is supported by ICES (formerly known as the Institute for Clinical Evaluative Sciences), which is funded by the Ontario Ministry of Health (MOH) and the Ministry of Long-Term Care (MLTC). Parts of this material are based on data and information compiled and provided by the MOH. The opinions, results and conclusions reported in this paper are those of the authors and are independent of the data sources; no endorsement is intended or should be inferred. Kwok is supported by the Canada Graduate Scholarship from the Canadian Institutes of Health Research. Eder is Canada Research Chair (Tier 2) in Equity in Care of Rheumatic Disorders. Widdifield receives support from the Arthritis Society Stars Career Development Award (STAR-19-0610). Conflict of interest: none. Corresponding Author: Jessica Widdifield, Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
| | - Lauren K King
- Division of Rheumatology, Department of Medicine, University of Toronto, Canada; Institute of Health Policy, Management & Evaluation, University of Toronto, Canada; Women's College Research Institute, Women's College Hospital, University of Toronto, Toronto, Canada; Institute of Medical Science, University of Toronto; Southlake Regional Health Centre, Newmarket; University of Toronto, Canada; ICES, Toronto, Canada; Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto, Canada. Funding: This study was funded by the Canadian Rheumatology Association Canadian Initiative for Outcomes in Rheumatology cAre (CIORA). The study is supported by ICES (formerly known as the Institute for Clinical Evaluative Sciences), which is funded by the Ontario Ministry of Health (MOH) and the Ministry of Long-Term Care (MLTC). Parts of this material are based on data and information compiled and provided by the MOH. The opinions, results and conclusions reported in this paper are those of the authors and are independent of the data sources; no endorsement is intended or should be inferred. Kwok is supported by the Canada Graduate Scholarship from the Canadian Institutes of Health Research. Eder is Canada Research Chair (Tier 2) in Equity in Care of Rheumatic Disorders. Widdifield receives support from the Arthritis Society Stars Career Development Award (STAR-19-0610). Conflict of interest: none. Corresponding Author: Jessica Widdifield, Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
| | - Lihi Eder
- Division of Rheumatology, Department of Medicine, University of Toronto, Canada; Institute of Health Policy, Management & Evaluation, University of Toronto, Canada; Women's College Research Institute, Women's College Hospital, University of Toronto, Toronto, Canada; Institute of Medical Science, University of Toronto; Southlake Regional Health Centre, Newmarket; University of Toronto, Canada; ICES, Toronto, Canada; Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto, Canada. Funding: This study was funded by the Canadian Rheumatology Association Canadian Initiative for Outcomes in Rheumatology cAre (CIORA). The study is supported by ICES (formerly known as the Institute for Clinical Evaluative Sciences), which is funded by the Ontario Ministry of Health (MOH) and the Ministry of Long-Term Care (MLTC). Parts of this material are based on data and information compiled and provided by the MOH. The opinions, results and conclusions reported in this paper are those of the authors and are independent of the data sources; no endorsement is intended or should be inferred. Kwok is supported by the Canada Graduate Scholarship from the Canadian Institutes of Health Research. Eder is Canada Research Chair (Tier 2) in Equity in Care of Rheumatic Disorders. Widdifield receives support from the Arthritis Society Stars Career Development Award (STAR-19-0610). Conflict of interest: none. Corresponding Author: Jessica Widdifield, Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
| | - Carter Thorne
- Division of Rheumatology, Department of Medicine, University of Toronto, Canada; Institute of Health Policy, Management & Evaluation, University of Toronto, Canada; Women's College Research Institute, Women's College Hospital, University of Toronto, Toronto, Canada; Institute of Medical Science, University of Toronto; Southlake Regional Health Centre, Newmarket; University of Toronto, Canada; ICES, Toronto, Canada; Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto, Canada. Funding: This study was funded by the Canadian Rheumatology Association Canadian Initiative for Outcomes in Rheumatology cAre (CIORA). The study is supported by ICES (formerly known as the Institute for Clinical Evaluative Sciences), which is funded by the Ontario Ministry of Health (MOH) and the Ministry of Long-Term Care (MLTC). Parts of this material are based on data and information compiled and provided by the MOH. The opinions, results and conclusions reported in this paper are those of the authors and are independent of the data sources; no endorsement is intended or should be inferred. Kwok is supported by the Canada Graduate Scholarship from the Canadian Institutes of Health Research. Eder is Canada Research Chair (Tier 2) in Equity in Care of Rheumatic Disorders. Widdifield receives support from the Arthritis Society Stars Career Development Award (STAR-19-0610). Conflict of interest: none. Corresponding Author: Jessica Widdifield, Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
| | - Zhiyin Li
- Division of Rheumatology, Department of Medicine, University of Toronto, Canada; Institute of Health Policy, Management & Evaluation, University of Toronto, Canada; Women's College Research Institute, Women's College Hospital, University of Toronto, Toronto, Canada; Institute of Medical Science, University of Toronto; Southlake Regional Health Centre, Newmarket; University of Toronto, Canada; ICES, Toronto, Canada; Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto, Canada. Funding: This study was funded by the Canadian Rheumatology Association Canadian Initiative for Outcomes in Rheumatology cAre (CIORA). The study is supported by ICES (formerly known as the Institute for Clinical Evaluative Sciences), which is funded by the Ontario Ministry of Health (MOH) and the Ministry of Long-Term Care (MLTC). Parts of this material are based on data and information compiled and provided by the MOH. The opinions, results and conclusions reported in this paper are those of the authors and are independent of the data sources; no endorsement is intended or should be inferred. Kwok is supported by the Canada Graduate Scholarship from the Canadian Institutes of Health Research. Eder is Canada Research Chair (Tier 2) in Equity in Care of Rheumatic Disorders. Widdifield receives support from the Arthritis Society Stars Career Development Award (STAR-19-0610). Conflict of interest: none. Corresponding Author: Jessica Widdifield, Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
| | - Therese Stukel
- Division of Rheumatology, Department of Medicine, University of Toronto, Canada; Institute of Health Policy, Management & Evaluation, University of Toronto, Canada; Women's College Research Institute, Women's College Hospital, University of Toronto, Toronto, Canada; Institute of Medical Science, University of Toronto; Southlake Regional Health Centre, Newmarket; University of Toronto, Canada; ICES, Toronto, Canada; Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto, Canada. Funding: This study was funded by the Canadian Rheumatology Association Canadian Initiative for Outcomes in Rheumatology cAre (CIORA). The study is supported by ICES (formerly known as the Institute for Clinical Evaluative Sciences), which is funded by the Ontario Ministry of Health (MOH) and the Ministry of Long-Term Care (MLTC). Parts of this material are based on data and information compiled and provided by the MOH. The opinions, results and conclusions reported in this paper are those of the authors and are independent of the data sources; no endorsement is intended or should be inferred. Kwok is supported by the Canada Graduate Scholarship from the Canadian Institutes of Health Research. Eder is Canada Research Chair (Tier 2) in Equity in Care of Rheumatic Disorders. Widdifield receives support from the Arthritis Society Stars Career Development Award (STAR-19-0610). Conflict of interest: none. Corresponding Author: Jessica Widdifield, Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
| | - Longdi Fu
- Division of Rheumatology, Department of Medicine, University of Toronto, Canada; Institute of Health Policy, Management & Evaluation, University of Toronto, Canada; Women's College Research Institute, Women's College Hospital, University of Toronto, Toronto, Canada; Institute of Medical Science, University of Toronto; Southlake Regional Health Centre, Newmarket; University of Toronto, Canada; ICES, Toronto, Canada; Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto, Canada. Funding: This study was funded by the Canadian Rheumatology Association Canadian Initiative for Outcomes in Rheumatology cAre (CIORA). The study is supported by ICES (formerly known as the Institute for Clinical Evaluative Sciences), which is funded by the Ontario Ministry of Health (MOH) and the Ministry of Long-Term Care (MLTC). Parts of this material are based on data and information compiled and provided by the MOH. The opinions, results and conclusions reported in this paper are those of the authors and are independent of the data sources; no endorsement is intended or should be inferred. Kwok is supported by the Canada Graduate Scholarship from the Canadian Institutes of Health Research. Eder is Canada Research Chair (Tier 2) in Equity in Care of Rheumatic Disorders. Widdifield receives support from the Arthritis Society Stars Career Development Award (STAR-19-0610). Conflict of interest: none. Corresponding Author: Jessica Widdifield, Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
| | - Alexander Kopp
- Division of Rheumatology, Department of Medicine, University of Toronto, Canada; Institute of Health Policy, Management & Evaluation, University of Toronto, Canada; Women's College Research Institute, Women's College Hospital, University of Toronto, Toronto, Canada; Institute of Medical Science, University of Toronto; Southlake Regional Health Centre, Newmarket; University of Toronto, Canada; ICES, Toronto, Canada; Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto, Canada. Funding: This study was funded by the Canadian Rheumatology Association Canadian Initiative for Outcomes in Rheumatology cAre (CIORA). The study is supported by ICES (formerly known as the Institute for Clinical Evaluative Sciences), which is funded by the Ontario Ministry of Health (MOH) and the Ministry of Long-Term Care (MLTC). Parts of this material are based on data and information compiled and provided by the MOH. The opinions, results and conclusions reported in this paper are those of the authors and are independent of the data sources; no endorsement is intended or should be inferred. Kwok is supported by the Canada Graduate Scholarship from the Canadian Institutes of Health Research. Eder is Canada Research Chair (Tier 2) in Equity in Care of Rheumatic Disorders. Widdifield receives support from the Arthritis Society Stars Career Development Award (STAR-19-0610). Conflict of interest: none. Corresponding Author: Jessica Widdifield, Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
| | - Jessica Widdifield
- Division of Rheumatology, Department of Medicine, University of Toronto, Canada; Institute of Health Policy, Management & Evaluation, University of Toronto, Canada; Women's College Research Institute, Women's College Hospital, University of Toronto, Toronto, Canada; Institute of Medical Science, University of Toronto; Southlake Regional Health Centre, Newmarket; University of Toronto, Canada; ICES, Toronto, Canada; Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto, Canada. Funding: This study was funded by the Canadian Rheumatology Association Canadian Initiative for Outcomes in Rheumatology cAre (CIORA). The study is supported by ICES (formerly known as the Institute for Clinical Evaluative Sciences), which is funded by the Ontario Ministry of Health (MOH) and the Ministry of Long-Term Care (MLTC). Parts of this material are based on data and information compiled and provided by the MOH. The opinions, results and conclusions reported in this paper are those of the authors and are independent of the data sources; no endorsement is intended or should be inferred. Kwok is supported by the Canada Graduate Scholarship from the Canadian Institutes of Health Research. Eder is Canada Research Chair (Tier 2) in Equity in Care of Rheumatic Disorders. Widdifield receives support from the Arthritis Society Stars Career Development Award (STAR-19-0610). Conflict of interest: none. Corresponding Author: Jessica Widdifield, Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
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Eder L, Croxford R, Drucker AM, Mendel A, Kuriya B, Touma Z, Johnson SR, Cook R, Bernatsky S, Haroon N, Widdifield J. Understanding COVID-19 Risk in Patients With Immune-Mediated Inflammatory Diseases: A Population-Based Analysis of SARS-CoV-2 Testing. Arthritis Care Res (Hoboken) 2022; 75:317-325. [PMID: 34486829 PMCID: PMC8653048 DOI: 10.1002/acr.24781] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 08/06/2021] [Accepted: 09/02/2021] [Indexed: 12/04/2022]
Abstract
OBJECTIVE To investigate the incidence of and factors associated with SARS-CoV-2 testing and infection in immune-mediated inflammatory disease (IMID) patients versus matched non-IMID comparators from the general population. METHODS We conducted a population-based, matched cohort study among adult residents from Ontario, Canada, from January 2020 to December 2020. We created cohorts for the following IMIDs: rheumatoid arthritis (RA), psoriasis, psoriatic arthritis, ankylosing spondylitis, systemic autoimmune rheumatic diseases, multiple sclerosis (MS), iritis, inflammatory bowel disease (IBD), polymyalgia rheumatica, and vasculitis. Each patient was matched with 5 patients without IMIDs based on sociodemographic factors. We estimated the incidence of SARS-CoV-2 testing and infection in IMID patients and non-IMID patients. Multivariable logistic regressions assessed odds of SARS-CoV-2 infection. RESULTS We studied 493,499 patients with IMIDs and 2,466,946 patients without IMIDs. Patients with IMIDs were more likely to have at least 1 SARS-CoV-2 test versus patients without IMIDs (27.4% versus 22.7%), but the proportion testing positive for SARS-CoV-2 was identical (0.9% in both groups). Overall, IMID patients had 20% higher odds of being tested for SARS-CoV-2 (odds ratio 1.20 [95% confidence interval 1.19-1.21]). The odds of SARS-CoV-2 infection varied across IMID groups but was not significantly elevated for most IMID groups compared with non-IMID comparators. The odds of SARS-CoV-2 infection was lower in IBD and MS and marginally higher in RA and iritis. CONCLUSION Patients across all IMIDs were more likely to be tested for SARS-CoV-2 versus those without IMIDs. The risk of SARS-CoV-2 infection varied across disease subgroups.
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Affiliation(s)
- Lihi Eder
- University of TorontoTorontoOntarioCanada
| | | | | | | | - Bindee Kuriya
- Sinai Health System, University of TorontoTorontoOntarioCanada
| | - Zahi Touma
- Toronto Western Hospital, University of TorontoTorontoOntarioCanada
| | - Sindhu R. Johnson
- Toronto Western Hospital, Mount Sinai Hospital, University of TorontoTorontoOntarioCanada
| | | | | | - Nigil Haroon
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, Toronto Western Hospital, University of TorontoTorontoOntarioCanada
| | - Jessica Widdifield
- Sunnybrook Research Institute, ICES, University of TorontoTorontoOntarioCanada
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Jaakkimainen L, Duchen R, Lix L, Al-Azazi S, Yu B, Butt D, Park SB, Widdifield J. Identification of Early Onset Dementia in Population-Based Health Administrative Data: A Validation Study Using Primary Care Electronic Medical Records. J Alzheimers Dis 2022; 89:1463-1472. [PMID: 36057820 DOI: 10.3233/jad-220384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Early onset dementia (EOD) occurs when symptoms of dementia begin between 45 to 64 years of age. OBJECTIVE We developed and validated health administrative data algorithms for EOD and compared demographic characteristics and presence of comorbid conditions amongst adults with EOD, late onset dementia (LOD) and adults with no dementia in Ontario, Canada. METHODS Patients aged 45 to 64 years identified as having EOD in their primary care electronic medical records had their records linked to provincial health administrative data. We compared several combinations of physician's claims, hospitalizations, emergency department visits and prescriptions. Age-standardized incidence and prevalence rates of EOD were estimated from 1996 to 2016. RESULTS The prevalence of EOD for adults aged 45 to 64 years in our primary care reference cohort was 0.12% . An algorithm of ≥1 hospitalization or ≥3 physician claims at least 30 days apart in a two-year period or ≥1 dementia medication had a sensitivity of 72.9% (64.5-81.3), specificity of 99.7% (99.7-99.8), positive predictive value (PPV) of 23.7% (19.1-28.3), and negative predictive value of 100.0% . Multivariate logistic regression found adults with EOD had increased odds ratios for several health conditions compared to LOD and no dementia populations. From 1996 to 2016, the age-adjusted incidence rate increased slightly (0.055 to 0.061 per 100 population) and the age-adjusted prevalence rate increased three-fold (0.11 to 0.32 per 100 population). CONCLUSION While we developed a health administrative data algorithm for EOD with a reasonable sensitivity, its low PPV limits its ability to be used for population surveillance.
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Affiliation(s)
- Liisa Jaakkimainen
- Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada.,Department of Family and Community Medicine, University of Toronto, Toronto, Ontario, Canada.,Institute of Health Policy Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.,Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Raquel Duchen
- Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
| | - Lisa Lix
- Institute of Health Policy Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.,Community Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Saeed Al-Azazi
- Community Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Bing Yu
- Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada
| | - Debra Butt
- Department of Family and Community Medicine, University of Toronto, Toronto, Ontario, Canada.,Scarborough Hospital, Toronto, Ontario, Canada
| | - Su-Bin Park
- Public Health Agency of Canada, Ottawa, Ontario, Canada
| | - Jessica Widdifield
- Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada.,Institute of Health Policy Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.,Sunnybrook Research Institute, Toronto, Ontario, Canada
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Lee JJY, Feldman BM, McCrindle BW, Li P, Yeung RS, Widdifield J. Evaluating the time-varying risk of hypertension, cardiac events, and mortality following Kawasaki disease diagnosis. Pediatr Res 2022; 93:1439-1446. [PMID: 36002584 DOI: 10.1038/s41390-022-02273-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 07/22/2022] [Accepted: 08/03/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND This study evaluated the risk of hypertension, major adverse cardiac events (MACE), and all-cause mortality in Kawasaki disease (KD) patients up to young adulthood. METHODS An inception cohort of 1169 KD patients between 1991 and 2008 from a tertiary-level hospital in Ontario, Canada was linked with health administrative data to ascertain outcomes up to 28 years of follow-up. Their risk was compared with 11,690 matched population comparators. The primary outcome was hypertension and secondary outcomes were MACE and death. RESULTS After a median follow-up of 20 years [IQR: 8.3], the cumulative incidence of hypertension and MACE in the KD group was 3.8% (95% CI: 2.5-5.5) and 1.2% (95% CI: 0.6-2.4%), respectively. The overall survival probability in the KD group was 98.6% (95% CI: 97.2-99.3%). Relative to comparators, KD patients were at an increased risk for hypertension [aHR: 2.2 (95% CI: 1.5-3.4)], death [aHR: 2.5 (95% CI: 1.3-5.0)], and MACE [aHR: 10.7 (95% CI: 6.4-17.9)]. For hypertension and MACE, the aHR was the highest following diagnosis and then the excess risk diminished after 16 and 13 years of follow-up, respectively. MACE occurred largely in KD patients with coronary aneurysms [cumulative incidence: 12.8%]. CONCLUSIONS KD patients demonstrated a reassuring cardiac prognosis up to young adulthood with low events and excellent survival. KD patients were at increased risk for hypertension, but this excess risk occurred early and declined with time. IMPACT With the current standard of care, KD patients demonstrated favorable cardiac prognosis, with low events of hypertension, MACE, and excellent survival. Hypertension and MACE risk appear to be highest around the time of KD diagnosis. MACE occurred primarily in KD patients with coronary aneurysms. Our findings are reassuring to KD patients, families, and their providers. Our study demonstrated an association between KD exposure and hypertension. This association is relatively novel. Previous studies have remained conflicting if KD contributes to long-term atherosclerotic risk.
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Affiliation(s)
- Jennifer J Y Lee
- The Hospital for Sick Children (SickKids), Toronto, ON, Canada. .,ICES, Toronto, ON, Canada. .,University of Toronto, Toronto, ON, Canada.
| | - Brian M Feldman
- The Hospital for Sick Children (SickKids), Toronto, ON, Canada.,University of Toronto, Toronto, ON, Canada.,Institute of Health Policy, Management, & Evaluation, University of Toronto, Toronto, ON, Canada
| | - Brian W McCrindle
- The Hospital for Sick Children (SickKids), Toronto, ON, Canada.,University of Toronto, Toronto, ON, Canada
| | | | - Rae Sm Yeung
- The Hospital for Sick Children (SickKids), Toronto, ON, Canada.,University of Toronto, Toronto, ON, Canada
| | - Jessica Widdifield
- ICES, Toronto, ON, Canada.,University of Toronto, Toronto, ON, Canada.,Institute of Health Policy, Management, & Evaluation, University of Toronto, Toronto, ON, Canada.,Sunnybrook Research Institute, Toronto, ON, Canada
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Bhanot K, Widdifield J, Huang A, Paterson JM, Shultz DB, Finkelstein J. Survival after surgery for spinal metastases: a population-based study. Can J Surg 2022; 65:E512-E518. [PMID: 35926885 PMCID: PMC9363129 DOI: 10.1503/cjs.000921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/20/2021] [Indexed: 11/18/2022] Open
Abstract
Background: There are limited published data on population estimates of survival after spinal surgery for metastatic disease. We performed a population-based study to evaluate survival and complications among patients with cancer who underwent surgery for spinal metastases in Ontario, Canada, between 2006 and 2016. Methods: We used health administrative databases to identify all patients who underwent surgery for spinal metastases in Ontario between Jan. 1, 2006, and Dec. 31, 2016. We assessed overall survival, mortality rates according to primary cancer lesion and complications after surgery. We contrast the results to those for a comparable cohort from 1991 to 1998. Results: A total of 2646 patients (1194 women [45.1%]; mean age 62.5 yr [standard deviation 12.2 yr]) were identified. The median survival time was 236 (interquartile range 84–740) days. Mortality was highest for patients with melanoma, upper gastrointestinal cancer and lung cancer, with 50% dying within 90 days of surgery. The longest median survival times were observed for primary cancers of the thyroid (906 d) and breast (644 d), and myeloma (830 d). Overall 90-day and 1-year mortality rates were 29% and 59%, respectively. Conclusion: We identified differential survivorship based on primary tumour type and a shift in the distribution of operations performed for specific primary cancers over the past 2 decades in Ontario. Overall reductions in mortality associated with this shift in treatment may reflect the use of adjuvant therapies and more personalized treatment approaches.
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Affiliation(s)
- Kunal Bhanot
- From the Department of Surgery, University of Toronto, Toronto, Ont. (Bhanot, Finkelstein); the Holland Bone and Joint Research Program, Sunnybrook Research Institute, Toronto, Ont. (Widdifield, Finkelstein); ICES Central, Toronto, Ont. (Widdifield, Huang, Paterson); the Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ont. (Widdifield, Paterson); the Department of Family Medicine, McMaster University, Hamilton, Ont. (Paterson); the Department of Radiation Oncology, University of Toronto, Toronto, Ont. (Shultz); Princess Margaret Cancer Centre, Toronto, Ont. (Shultz); and Unity Health Toronto, St. Michael's Hospital, Toronto, Ont. (Bhanot)
| | - Jessica Widdifield
- From the Department of Surgery, University of Toronto, Toronto, Ont. (Bhanot, Finkelstein); the Holland Bone and Joint Research Program, Sunnybrook Research Institute, Toronto, Ont. (Widdifield, Finkelstein); ICES Central, Toronto, Ont. (Widdifield, Huang, Paterson); the Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ont. (Widdifield, Paterson); the Department of Family Medicine, McMaster University, Hamilton, Ont. (Paterson); the Department of Radiation Oncology, University of Toronto, Toronto, Ont. (Shultz); Princess Margaret Cancer Centre, Toronto, Ont. (Shultz); and Unity Health Toronto, St. Michael's Hospital, Toronto, Ont. (Bhanot)
| | - Anjie Huang
- From the Department of Surgery, University of Toronto, Toronto, Ont. (Bhanot, Finkelstein); the Holland Bone and Joint Research Program, Sunnybrook Research Institute, Toronto, Ont. (Widdifield, Finkelstein); ICES Central, Toronto, Ont. (Widdifield, Huang, Paterson); the Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ont. (Widdifield, Paterson); the Department of Family Medicine, McMaster University, Hamilton, Ont. (Paterson); the Department of Radiation Oncology, University of Toronto, Toronto, Ont. (Shultz); Princess Margaret Cancer Centre, Toronto, Ont. (Shultz); and Unity Health Toronto, St. Michael's Hospital, Toronto, Ont. (Bhanot)
| | - J Michael Paterson
- From the Department of Surgery, University of Toronto, Toronto, Ont. (Bhanot, Finkelstein); the Holland Bone and Joint Research Program, Sunnybrook Research Institute, Toronto, Ont. (Widdifield, Finkelstein); ICES Central, Toronto, Ont. (Widdifield, Huang, Paterson); the Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ont. (Widdifield, Paterson); the Department of Family Medicine, McMaster University, Hamilton, Ont. (Paterson); the Department of Radiation Oncology, University of Toronto, Toronto, Ont. (Shultz); Princess Margaret Cancer Centre, Toronto, Ont. (Shultz); and Unity Health Toronto, St. Michael's Hospital, Toronto, Ont. (Bhanot)
| | - David B Shultz
- From the Department of Surgery, University of Toronto, Toronto, Ont. (Bhanot, Finkelstein); the Holland Bone and Joint Research Program, Sunnybrook Research Institute, Toronto, Ont. (Widdifield, Finkelstein); ICES Central, Toronto, Ont. (Widdifield, Huang, Paterson); the Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ont. (Widdifield, Paterson); the Department of Family Medicine, McMaster University, Hamilton, Ont. (Paterson); the Department of Radiation Oncology, University of Toronto, Toronto, Ont. (Shultz); Princess Margaret Cancer Centre, Toronto, Ont. (Shultz); and Unity Health Toronto, St. Michael's Hospital, Toronto, Ont. (Bhanot)
| | - Joel Finkelstein
- From the Department of Surgery, University of Toronto, Toronto, Ont. (Bhanot, Finkelstein); the Holland Bone and Joint Research Program, Sunnybrook Research Institute, Toronto, Ont. (Widdifield, Finkelstein); ICES Central, Toronto, Ont. (Widdifield, Huang, Paterson); the Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ont. (Widdifield, Paterson); the Department of Family Medicine, McMaster University, Hamilton, Ont. (Paterson); the Department of Radiation Oncology, University of Toronto, Toronto, Ont. (Shultz); Princess Margaret Cancer Centre, Toronto, Ont. (Shultz); and Unity Health Toronto, St. Michael's Hospital, Toronto, Ont. (Bhanot)
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Kuriya B, Eder L, Widdifield J, Ferreira-Legere L, Jeong IJ, Fang J, Chu A, Udell J. POS1406 EVALUATING THE QUALITY OF CARE FOR HEART FAILURE HOSPITALIZATIONS IN INFLAMMATORY ARTHRITIS- A POPULATION-BASED COHORT STUDY. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundIndividuals with inflammatory arthritis (IA) have an increased risk of heart failure (HF). Little is known if the quality of HF care differs among patients with IA compared to other chronic diseases such as diabetes mellitus (DM).ObjectivesWe examined adherence to quality-of-care indicators for HF hospitalizations among patients with IA compared to those with DM but no IA and the general population (without IA or DM).MethodsWe linked multiple population-based health datasets to construct a cohort of adults living in Ontario, Canada on January 1, 2011 and followed to December 2020. The IA cohort was identified using validated case definitions and included patients with rheumatoid arthritis, ankylosing spondylitis and psoriatic arthritis. Comparison cohorts included adults with DM but no IA and general comparators without DM or IA. We included all subjects with a first HF hospitalization and who were alive at the time of discharge. We summarized the percentage of subjects in each of the 3 exposure groups who achieved recommended quality process measures [1]: (1) % receiving echocardiogram, (2) % receiving electrocardiogram, (3) % receiving a chest x-ray; and (4) % seen by a physician within 7 days of discharge. For those over the age of 65 years in whom medication information was universally available, we examined how many were dispensed evidence-based therapies: (5) % prescribed β-blocker, (6) % prescribed angiotensin-converting enzyme inhibitor or angiotensin receptor blocker, (7) % prescribed mineralocorticoid receptor antagonist. We categorized adherence as perfect, moderate, or poor based on the number of measures achieved and compared proportions using pair-wise chi-squared tests.ResultsA first HF hospitalization occurred in 5,836 IA patients, 33,553 DM patients and 62,256 general comparators. The crude incidence rate for HF in IA was 2.70 per 1000/PY and was significantly higher compared to the general population (0.84 per 1000/PY), but lower compared to the DM cohort (5.01 per 1000/PY, p< 0.001). Mean age at time of HF hospitalization was significantly higher in the IA group (78 years) with more females affected (58%) compared to either the DM or general population group (p<0.001). All groups had high achievement of testing process measures and there were no differences in perfect adherence between the IA vs. DM and IA vs. general population comparators (Table 1). For those >65 years of age, patients with IA were less likely to achieve perfect adherence for medication quality indicators compared to either the DM or general population.Table 1.Percentage in each of three exposure groups achieving the recommended HF quality measures.Process MeasureIA GroupDM GroupGeneral Population1.Echocardiogram90.6%91.1%89.5%2.Electrocardiogram97.4%97.4%97.3%3.Chest x-ray99.7%99.6%99.6%4.Health care provider visit within 7 days of discharge39.0%38.9%38.7%Perfect Adherence (achieving 1, 2,3 and 4 above)33.0%33.0% (p=0.43, IA vs. DM)32.2% (p=0.15, IA vs general population)5.Beta-blocker prescribed64.8%70.5%66.6%6.Angiotensin-converting enzyme inhibitor or angiotensin receptor blocker prescribed54.8%61.3%56.2%7.Mineralocorticoid receptor antagonist prescribed20.3%19.9%21.2%Perfect Adherence (achieving 5, 6 and 7 above)10.6%12.0% (p=<0.001, IA vs. DM)12.0% (p=0.02, IA vs general population)ConclusionHF quality indicators are adhered to in a high proportion of patients with IA following HF hospitalization. However, reasons for lower HF medication prescribing in IA compared to other high-risk conditions, such as DM, requires further evaluation. It will also be important to determine if adherence to HF quality of care translates to reduced long-term outcomes such as repeat HF hospitalizations and cardiovascular mortality, which we are currently exploring.References[1]Ontario HQ. Recommendations for Adoption: Heart Failure Care in the Community 2019 [Available from: http://www.hqontario.ca/Evidence-to-Improve-Care/Quality-StandardsDisclosure of InterestsBindee Kuriya Speakers bureau: Abbvie, Gilead, Pfizer, Lihi Eder Speakers bureau: Abbvie, UCB, Pfizer, Eli Lily, Novartis and Sandoz, Jessica Widdifield: None declared, Laura Ferreira-Legere: None declared, Irene JH Jeong: None declared, Jiming Fang: None declared, Anna Chu: None declared, Jacob Udell: None declared
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Widdifield J, Kwong JC, Chen S, Eder L, Benchimol EI, Kaplan GG, Hitchon C, Aviña-Zubieta JA, Lacaille D, Chung H, Bernatsky S. Vaccine effectiveness against SARS-CoV-2 infection and severe outcomes among individuals with immune-mediated inflammatory diseases tested between March 1 and Nov 22, 2021, in Ontario, Canada: a population-based analysis. The Lancet Rheumatology 2022; 4:e430-e440. [PMID: 35441151 PMCID: PMC9009845 DOI: 10.1016/s2665-9913(22)00096-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Background We estimated COVID-19 vaccine effectiveness against SARS-CoV-2 infection and severe COVID-19 outcomes among individuals with immune-mediated inflammatory diseases in Ontario, Canada. Methods In this population-based analysis, we used a test-negative design across four immune-mediated inflammatory disease population-based cohorts, comprising individuals with rheumatoid arthritis, ankylosing spondylitis, psoriasis, and inflammatory bowel disease. We identified all SARS-CoV-2 tests done in these populations between March 1 and Nov 22, 2021 (a period in which there was rapid uptake of vaccines, and the alpha [B.1.1.7] and delta [B.1.617.2] SARS-CoV-2 variants were predominantly circulating in Canada) and separately assessed outcomes of SARS-CoV-2 infection and severe COVID-19 outcomes (hospitalisation due to COVID-19 and death due to COVID-19) for each disease group. We used multivariable logistic regression to estimate the effectiveness of one, two, and three doses of mRNA-based COVID-19 vaccine (BNT162b2 [Pfizer–BioNTech], or mRNA-1273 [Moderna]) among individuals at the time of SARS-CoV-2 testing. Findings Between March 1 and Nov 22, 2021, we identified 2127 (5·9%) test-positive cases among 36 145 individuals (26 476 [73·2%] were female and 9669 [26·8%] were male) with rheumatoid arthritis tested, 476 (6·1%) test-positive cases among 7863 individuals (4130 [52·5%] were female and 3733 [47·5%] were male) with ankylosing spondylitis tested, 3089 (6·5%) test-positive cases among 47 199 individuals (26 062 [55·2%] were female and 21 137 [44·8%] were male) with psoriasis tested, and 1702 (5·4%) test-positive cases among 31 311 individuals (17 716 [56·6%] were female and 13 595 [43·4%] were male) with inflammatory bowel disease tested. Adjusted vaccine effectiveness of two doses against infection was 83% (95% CI 80–86) in those with rheumatoid arthritis, 89% (83–93) among those with ankylosing spondylitis, 84% (81–86) among those with psoriasis, and 79% (74–82) among those with inflammatory bowel disease. After two vaccine doses, effectiveness against infection generally peaked 31–60 days after vaccination and waned gradually with each additional month. Vaccine effectiveness against severe outcomes after two doses was 92% (95% CI 88–95) in those with rheumatoid arthritis, 97% (83–99) among those with ankylosing spondylitis, 92% (86–95) among those with psoriasis, and 94% (88–97) among those with inflammatory bowel disease. Vaccine effectiveness after a third dose against infection was similar to or higher than after the second dose (ranging from 76% [47–89] to 96% [72–99]), although due to a paucity of events, estimates could not be calculated for some subgroups for severe outcomes. Interpretation Two vaccine doses were found to be highly effective against both SARS-CoV-2 infection and severe COVID-19 outcomes in patients with rheumatoid arthritis, ankylosing spondylitis, psoriasis, and inflammatory bowel disease during the study period. Research is needed to determine the durability of effectiveness of three doses over time, particularly against emerging variants. Funding Public Health Agency of Canada
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Affiliation(s)
- Jessica Widdifield
- Holland Bone & Joint Program, Sunnybrook Research Institute, Toronto ON, Canada
- ICES, Toronto, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada
| | - Jeffrey C Kwong
- ICES, Toronto, Canada
- Department of Family and Community Medicine, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
- Public Health Ontario, Toronto, Canada
| | | | - Lihi Eder
- Division of Rheumatology, University of Toronto, Toronto, ON, Canada
- Women's College Research Institute, Women's College Hospital, Toronto, ON, Canada
| | - Eric I Benchimol
- ICES, Toronto, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, ON, Canada
- Department of Paediatrics, University of Toronto, Toronto, ON, Canada
- SickKids Inflammatory Bowel Disease Centre, Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, Toronto, ON, Canada
- Child Health Evaluative Sciences, SickKids Research Institute, Toronto, ON, Canada
| | - Gilaad G Kaplan
- Department of Medicine and Department of Community Health Sciences, University of Calgary, Calgary, AB, Canada
| | - Carol Hitchon
- Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
| | - J Antonio Aviña-Zubieta
- Division of Rheumatology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
- Arthritis Research Canada, Vancouver, BC, Canada
| | - Diane Lacaille
- Division of Rheumatology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
- Arthritis Research Canada, Vancouver, BC, Canada
| | | | - Sasha Bernatsky
- Divisions of Rheumatology and Clinical Epidemiology, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
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Tarannum S, Widdifield J, Wu F, Johnson S, Rochon P, Eder L. POS0159 SEX-RELATED DISPARITIES IN HEALTHCARE UTILIZATION IN PATIENTS WITH INFLAMMATORY ARTHRITIS: A POPULATION-BASED STUDY. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundDelayed diagnosis of inflammatory arthritis (IA) such as rheumatoid arthritis (RA), ankylosing spondylitis (AS) and psoriatic arthritis (PsA) is associated with joint damage and disability. So regular timely assessment by both family physicians and specialists is necessary for favorable disease outcomes. Sex (biology) and gender (socio-cultural) related factors influence clinical patterns of IA, patient behavior and their interaction with care providers. This influence could be reflected in patterns of healthcare utilization.ObjectivesTo compare patterns of musculoskeletal (MSK)-related healthcare utilization before and after diagnosis between male and female patients with IA in Ontario, Canada.MethodsWe assembled 3 inception cohorts of adult RA, AS and PsA patients diagnosed between April 2010 and March 2017 using Ontario health administrative data. MSK-related healthcare utilization patterns in terms of visits to physicians, MSK imaging and laboratory tests were assessed yearly for 3 years before and after the diagnosis date, and compared between male and female patients. Among individuals ≥ 66 years, prescriptions for rheumatic drugs (NSAIDs, corticosteroids, csDMARDs, advanced therapy (bDMARDs and tsDMARDs)) and opioids were ascertained. Regression models were used to compare healthcare utilization indicators between males and females after adjusting for demographics and comorbidities.ResultsA total of 41,277 patients with RA (69% females), 8,150 patients with AS (51% females) and 6,446 patients with PsA (54% female) were analyzed. Male patients were significantly older than female patients only in the RA cohort (mean age M 60.4 y, F 57.1 y). Multimorbidity, depression and osteoporosis were more common in female patients and cardiovascular disease in male patients across the 3 cohorts.Similar trends of sex-related differences were observed in all three cohorts. Female patients were more likely to visit rheumatologists and family physicians than male patients especially in earlier pre-diagnosis periods (Figure 1). Male patients were more likely to visit emergency department immediately before diagnosis. A similar female predominance was observed in imaging modalities of X-rays and ultrasounds (adjusted ORs for F:M 1.15 - 1.2 for X-rays and 1.07 -1.44 for ultrasounds), and laboratory tests before diagnosis (adjusted ORs for F:M 1.10 to 2.17) across the three cohorts.Overall DMARD prescription patterns in older male and female patients were similar across the three cohorts except more csDMARD prescriptions in female AS patients (Table 1). Female RA patients were more likely to use NSAIDs and opioids.Table 1.Odds ratios for prescription patterns in inflammatory arthritis for older female to male patients after diagnosisMedication ClassAdjusted Odds Ratio (95% Confidence Interval)Rheumatoid ArthritisAnkylosing SpondylitisPsoriatic ArthritiscsDMARDYr 11.00 (0.92, 1.09)1.82 (1.38, 2.41)1.05 (0.81, 1.37)Yr 21.00 (0.92, 1.08)1.66 (1.24, 2.22)0.94 (0.73, 1.20)Yr 31.05 (0.97, 1.14)1.51 (1.12, 2.04)0.85 (0.66, 1.09)Advanced therapyYr 10.99 (0.78, 1.25)0.79 (0.49, 1.25)0.75 (0.47, 1.19)Yr 21.17 (0.99, 1.39)0.80 (0.53, 1.23)0.91 (0.61, 1.37)Yr 31.23 (1.05, 1.45)1.04 (0.67, 1.61)0.88 (0.6, 1.30)NSAIDYr 11.14 (1.04, 1.25)1.22 (0.91, 1.63)0.94 (0.71, 1.24)Yr 21.1 (0.99, 1.22)1.04 (0.77, 1.43)0.98 (0.73, 1.32)Yr 31.16 (1.04, 1.30)1.35 (0.96, 1.89)1.02 (0.73, 1.41)OpioidYr 11.39 (1.22, 1.58)1.23 (0.85, 1.78)1.32 (0.87, 1.98)Yr 21.51 (1.32, 1.72)1.22 (0.85, 1.76)1.14 (0.75, 1.75)Yr 31.46 (1.27, 1.68)1.42 (0.96, 2.09)1.45 (0.95, 2.23)Bolded results are statistically significant (p < 0.05). Odds ratios for female to male patients adjusted for age, residence, income quintiles, comorbidities and access to rheumatologistsConclusionFemale patients with IA have higher MSK-related healthcare utilization which may indicate biological differences in disease course or sociocultural differences in healthcare seeking behavior between male and female patients.ReferencesN/AAcknowledgementsDr. Sanjana Tarannum received funds from the Enid Walker Graduate Student Award for Research in Women’s Health for this study.Dr. Widdifield receives support from the Arthritis Society Stars Career Development Award (STAR-19-0610).Dr. Johnson has been awarded a Canadian Institutes of Health Research New Investigator Award.Dr. Paula Rochon holds the RTOERO Chair in Geriatric Medicine at the University of Toronto.Dr. Lihi Eder has been awarded Early Researcher Award from the Ontario Ministry of Research, Innovation and Science and Canada Research Chair (Tier 2) in Inflammatory Rheumatic Diseases.Disclosure of InterestsSanjana Tarannum: None declared, Jessica Widdifield: None declared, Fangyun Wu: None declared, Sindhu Johnson: None declared, Paula Rochon: None declared, Lihi Eder Grant/research support from: UCB, Abbvie, Pfizer, Janssen, Novartis, Eli Lily, SandozAdvisory board: Abbvie, Pfizer, Janssen, Novartis, Eli Lily
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Barber CEH, Lacaille D, Croxford R, Barnabe C, Marshall DA, Abrahamowicz M, Xie H, Avina-Zubieta JA, Esdaile JM, Hazlewood G, Faris P, Katz S, MacMullan P, Mosher D, Widdifield J. A Population-Based Study Evaluating Retention in Rheumatology Care Among Patients With Rheumatoid Arthritis. ACR Open Rheumatol 2022; 4:613-622. [PMID: 35514156 PMCID: PMC9274367 DOI: 10.1002/acr2.11442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/22/2022] [Accepted: 03/28/2022] [Indexed: 12/03/2022] Open
Abstract
Objective The study objective was to assess adherence to system‐level performance measures measuring retention in rheumatology care and disease modifying anti‐rheumatic drug (DMARD) treatment in rheumatoid arthritis (RA). Methods We used a validated health administrative data case definition to identify individuals with RA in Ontario, Canada, between 2002 and 2014 who had at least 5 years of potential follow‐up prior to 2019. During the first 5 years following diagnosis, we assessed whether patients were seen by a rheumatologist yearly and the proportion dispensed a DMARD yearly (in those aged ≥66 for whom medication data were available). Multivariable logistic regression analyses were used to estimate the odds of remaining under rheumatologist care. Results The cohort included 50,883 patients with RA (26.1% aged 66 years and older). Over half (57.7%) saw a rheumatologist yearly in all 5 years of follow‐up. Sharp declines in the percentage of patients with an annual visit were observed in each subsequent year after diagnosis, although a linear trend to improved retention in rheumatology care was seen over the study period (P < 0.0001). For individuals aged 66 years or older (n = 13,293), 82.1% under rheumatologist care during all 5 years after diagnosis were dispensed a DMARD annually compared with 31.0% of those not retained under rheumatology care. Older age, male sex, lower socioeconomic status, higher comorbidity score, and having an older rheumatologist decreased the odds of remaining under rheumatology care. Conclusion System‐level improvement initiatives should focus on maintaining ongoing access to rheumatology specialty care. Further investigation into causes of loss to rheumatology follow‐up is needed.
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Affiliation(s)
- Claire E H Barber
- University of Calgary, Calgary, Alberta, Canada, and Arthritis Research Canada, Vancouver, British Columbia, Canada
| | - Diane Lacaille
- Arthritis Research Canada and University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Cheryl Barnabe
- University of Calgary, Calgary, Alberta, Canada, and Arthritis Research Canada, Vancouver, British Columbia, Canada
| | - Deborah A Marshall
- University of Calgary, Calgary, Alberta, Canada, and Arthritis Research Canada, Vancouver, British Columbia, Canada
| | - Michal Abrahamowicz
- Arthritis Research Canada, Vancouver, British Columbia, Canada, and McGill University, Montreal, Quebec, Canada
| | - Hui Xie
- Arthritis Research Canada, Vancouver British Columbia, Canada, and Simon Fraser University, Burnaby, British Columbia, Canada
| | - J Antonio Avina-Zubieta
- Arthritis Research Canada and University of British Columbia, Vancouver, British Columbia, Canada
| | - John M Esdaile
- Arthritis Research Canada and University of British Columbia, Vancouver, British Columbia, Canada
| | - Glen Hazlewood
- University of Calgary, Calgary, Alberta, Canada, and Arthritis Research Canada, Vancouver, British Columbia, Canada
| | | | - Steven Katz
- University of Alberta, Edmonton, Alberta, Canada
| | | | | | - Jessica Widdifield
- ICES, University of Toronto, and Sunnybrook Research Institute, Holland Bone and Joint Research Program, Toronto, Canada
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Axelrod D, Ziegler T, Pincus D, Widdifield J, Marks P, Paterson M, Wasserstein D. Basketball vs. Hockey-The Changing Face of Sport-Related Injuries in Canada. Clin J Sport Med 2022; 32:e281-e287. [PMID: 33797478 DOI: 10.1097/jsm.0000000000000908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 09/23/2020] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To characterize and compare the incidence of basketball-related, soccer-related, and hockey-related injuries over a 10-year period. DESIGN Cohort analysis of sport-related injuries using multiple Ontario healthcare databases. SETTING Emergency department visits in Ontario, Canada. PATIENTS Any patient who sustained musculoskeletal injuries sustained while playing basketball, soccer, or hockey between 2006 and 2017 were identified. ASSESSMENT OF RISK FACTORS Sport of injury, age, sex, rurality index, marginalization status, and comorbidity score. MAIN OUTCOME MEASURES Annual Incidence Density Rates of injury were calculated for each sport, and significance of trends was analyzed by assessing overlap of 95% confidence intervals. RESULTS One lakhs eighty five thousand eighty hundred sixty-eight patients (median age: 16 years, interquartile range 13-26) received treatment for sport-related injuries (basketball = 55 468; soccer = 67 021; and hockey = 63 379). The incidence of basketball-related and soccer-related injuries increased from 3.4 (3.3-3.5) to 5.6 (5.5-5.7) and 4.4 (4.3-4.5) to 4.9 (4.8-5) per 10 000 person years, respectively, whereas the incidence of hockey-related injuries decreased from 4.7 (4.6-4.8) to 3.7 (3.6-3.8). Patients with basketball injuries were more marginalized (3.01 ± 0.74) compared with patients with soccer and hockey injuries (2.90 ± 0.75 and 2.72 ± 0.69, respectively). CONCLUSIONS Accurate regional epidemiologic information regarding sports injuries can be used to guide policy development for municipal planning and sport program development. The trends and demographic patterns described highlight general and sport-specific injury patterns in Ontario. Populations with the highest incidence of injury, most notably adolescents and men older than 50, may represent an appropriate population for injury risk prevention.
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Affiliation(s)
- Daniel Axelrod
- Department of Orthopedic Surgery, McMaster University, Hamilton, ON, Canada
| | - Teresa Ziegler
- University of Toronto, Faculty of MedicineToronto, ON, Canada
- Sunnybrook Health Sciences Centre & Sunnybrook Research Institute, Toronto, ON, Canada; and
| | - Daniel Pincus
- University of Toronto, Faculty of MedicineToronto, ON, Canada
- Sunnybrook Health Sciences Centre & Sunnybrook Research Institute, Toronto, ON, Canada; and
| | - Jessica Widdifield
- Sunnybrook Health Sciences Centre & Sunnybrook Research Institute, Toronto, ON, Canada; and
- Institute for Clinical Evaluative Sciences, Toronto, ON, Canada
| | - Paul Marks
- University of Toronto, Faculty of MedicineToronto, ON, Canada
- Sunnybrook Health Sciences Centre & Sunnybrook Research Institute, Toronto, ON, Canada; and
| | - Michael Paterson
- Sunnybrook Health Sciences Centre & Sunnybrook Research Institute, Toronto, ON, Canada; and
- Institute for Clinical Evaluative Sciences, Toronto, ON, Canada
| | - David Wasserstein
- University of Toronto, Faculty of MedicineToronto, ON, Canada
- Sunnybrook Health Sciences Centre & Sunnybrook Research Institute, Toronto, ON, Canada; and
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Kuenzig ME, Widdifield J, Bernatsky S, Kaplan GG, Benchimol EI. Uptake of third doses of SARS-CoV-2 vaccines among people with inflammatory bowel disease in Ontario, Canada. Lancet Gastroenterol Hepatol 2022; 7:288-289. [PMID: 35216658 PMCID: PMC8863433 DOI: 10.1016/s2468-1253(22)00054-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 02/11/2022] [Accepted: 02/14/2022] [Indexed: 11/20/2022]
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Lee JJY, Lin E, Widdifield J, Mahood Q, McCrindle BW, Yeung RSM, Feldman BM. The Long-term Cardiac and Noncardiac Prognosis of Kawasaki Disease: A Systematic Review. Pediatrics 2022; 149:184739. [PMID: 35118494 DOI: 10.1542/peds.2021-052567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
CONTEXT It is uncertain if children with Kawasaki Disease (KD) are at risk for non-cardiac diseases and if children with KD but without coronary artery aneurysms (CAA) are at risk for long-term cardiac complications. OBJECTIVE To determine the long-term mortality and prognosis of children after KD. DATA SOURCES Medline, Embase, and the Cochrane Central Register. STUDY SELECTION Controlled trials and observational studies were included if they included children with KD and reported mortality, major adverse cardiovascular events (MACE), chronic cardiac or other disease over an average follow-up of ≥1 year. DATA EXTRACTION Data extracted included sample size, age at diagnosis, the proportion with coronary artery aneurysms (CAA), follow-up duration, and outcome(s). RESULTS Seventy-four studies were included. Thirty-six studies reported mortality, 55 reported a cardiac outcome, and 12 reported a noncardiac outcome. Survival ranged from 92% to 99% at 10 years, 85% to 99% at 20 years, and 88% to 94% at 30 years. MACE-free survival, mostly studied in those with CAA, varied from 66% to 91% at 10 years, 29% to 74% at 20 years, and 36% to 96% at 30 years. Seven of 10 studies reported an increased risk in early atherosclerosis. All 6 included studies demonstrated an increased risk in allergic diseases. LIMITATIONS Our study may have missed associated chronic comorbidities because short-term studies were excluded. The majority of outcomes were evaluated in East-Asian patients, which may limit generalizability. Studies frequently excluded patients without CAA and did not compare outcomes to a comparison group. CONCLUSIONS Studies demonstrate >90% survival up to 30 years follow-up. MACE is observed in children with CAA, but is not well studied in those without CAA.
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Affiliation(s)
- Jennifer J Y Lee
- Department of Pediatrics.,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.,The Hospital for Sick Children (SickKids), Toronto, Ontario, Canada.,ICES, Toronto, Ontario, Canada
| | - Ethan Lin
- University of Ottawa, Ottawa, Ontario, Canada
| | - Jessica Widdifield
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.,Sunnybrook Research Institute, Toronto, Ontario, Canada.,ICES, Toronto, Ontario, Canada
| | - Quenby Mahood
- The Hospital for Sick Children (SickKids), Toronto, Ontario, Canada
| | - Brian W McCrindle
- Department of Pediatrics.,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.,The Hospital for Sick Children (SickKids), Toronto, Ontario, Canada
| | - Rae S M Yeung
- Department of Pediatrics.,Institute of Medical Science.,The Hospital for Sick Children (SickKids), Toronto, Ontario, Canada
| | - Brian M Feldman
- Department of Pediatrics.,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.,The Hospital for Sick Children (SickKids), Toronto, Ontario, Canada
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Kulhawy-Wibe SC, Widdifield J, Lee JJY, Thorne JC, Yacyshyn EA, Batthish M, Jerome D, Shupak R, Jilkine K, Purvis J, Shamis J, Roberts J, Kur J, Burt JE, Johnson NA, Barnabe C, Spencer N, Harrison M, Pope J, Barber CE. Results from the 2020 Canadian Rheumatology Association's Workforce and Wellness Survey. J Rheumatol 2022; 49:635-643. [DOI: 10.3899/jrheum.210990] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/06/2022] [Indexed: 11/22/2022]
Abstract
Objective The Canadian Rheumatology Association (CRA) launched the Workforce and Wellness Survey to update the Canadian rheumatology workforce characteristics. Methods The survey included demographic and practice information, pandemic impacts, and the Mini-Z questionnaire to assess burnout. French and English survey versions were distributed to CRA members electronically between 10/14/2020-3/5/2021. The number of full-time equivalent (FTE) rheumatologists per 75,000 population was estimated from the median proportion of time in clinical practice multiplied by provincial rheumatologist numbers from the Canadian Medical Association (CMA). Results Forty-four percent (183/417) of the estimated practicing rheumatologists (149 adult; 34 pediatric) completed the survey. The median age was 47 years, 62% were female, and 28% planned to retire within the next 5-10 years. Respondents spent a median of 65% of their time in clinical practice. FTE rheumatologists per 75,000 ranged between 0 and 0.70 in each province/territory and 0.62 per 75,000 nationally. This represents a deficit of 1 to 78 FTE rheumatologists per province/territory and 194 FTE rheumatologists nationally to meet the CRA's workforce benchmark. Approximately half of survey respondents reported burnout (51%). Women were more likely to report burnout (OR 2.86, 95%CI: 1.42-5.93). Older age was protective against burnout (OR 0.95, 95%CI: 0.92, 0.99). As a result of the pandemic, 97% of rheumatologists reported spending more time engaged in virtual care. Conclusion There is a shortage of rheumatologists in Canada. This shortage may be compounded by the threat of burnout to workforce retention and productivity. Strategies to address these workforce issues are urgently needed.
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Eder L, Croxford R, Drucker AM, Mendel A, Kuriya B, Touma Z, Johnson SR, Cook R, Bernatsky S, Haroon N, Widdifield J. COVID-19 hospitalizations, intensive care unit stays, ventilation and death among patients with immune mediated inflammatory diseases compared to controls. J Rheumatol 2022; 49:523-530. [DOI: 10.3899/jrheum.211012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/14/2022] [Indexed: 12/15/2022]
Abstract
Objective To investigate COVID-19 hospitalization risk in patients with immune mediated inflammatory diseases (IMIDs) compared with matched non-IMID comparators from the general population. Methods We conducted a population-based, matched cohort study using health administrative data from January to July 2020 in Ontario, Canada. Cohorts for each of the following IMIDs were assembled: rheumatoid arthritis (RA), psoriasis, psoriatic arthritis (PsA), ankylosing spondylitis, systemic autoimmune rheumatic diseases (SARDs), multiple sclerosis (MS), iritis, inflammatory bowel disease, polymyalgia rheumatica and vasculitis. Each patient was matched with 5 non-IMID comparators based on socio-demographic factors. We compared the cumulative incidence of hospitalizations for COVID-19 and their outcomes between IMID and non-IMID patients. Results A total of 493,499 IMID patients (417 hospitalizations) and 2,466,946 non-IMID comparators (1,519 hospitalizations) were assessed. The odds of being hospitalized for COVID- 19 was significantly higher in patients with IMIDs compared with their matched non-IMID comparators (matched unadjusted Odds Ratio (OR) 1.37, adjusted OR 1.23). Significantly higher risk of hospitalizations was found in patients with iritis (OR 1.46), MS (OR 1.83), PsA (OR 2.20), RA (OR 1.42), SARDs (OR 1.47) and vasculitis (OR 2.07). COVID-19 hospitalizations were associated with older age, male sex, long-term care residence, multimorbidity, and lower income. The odds of complicated hospitalizations was 21% higher among all IMID versus matched non-IMID patients, but this association was attenuated after adjusting for demographic factors and comorbidities. Conclusion Patients with IMIDs were at higher risk of being hospitalized with COVID-19. This risk was explained in part by their comorbidities.
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Widdifield J, Eder L, Chen S, Kwong JC, Hitchon C, Lacaille D, Aviña-Zubieta JA, Svenson LW, Bernatsky S. COVID-19 Vaccination Uptake among individuals with Immune-Mediated Inflammatory Diseases in Ontario, Canada between December 2020 and October 2021: A population-based analysis. J Rheumatol 2022; 49:531-536. [PMID: 35034001 DOI: 10.3899/jrheum.211148] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2021] [Indexed: 12/04/2022]
Abstract
OBJECTIVE We assessed COVID-19 vaccine uptake among individuals with immune-mediated inflammatory diseases (IMID) and the Ontario general population. METHODS We studied all residents 16 years and older who were alive and enrolled in Ontario's universal health insurance plan as of December 14, 2020 when vaccination commenced (n=12,435,914). Individuals with rheumatoid arthritis (RA), ankylosing spondylitis (AS), psoriatic arthritis (PsA), psoriasis (PsO), and inflammatory bowel disease (IBD) were identified using established disease-specific case definitions applied to health administrative data. Vaccination status was extracted from the provincial COVaxON registry. Weekly cumulative proportions of first and second doses up until October 3, 2021 were expressed as the vaccinated percentage of each disease group, and compared to the general Ontario population, and stratified by age. RESULTS By October 3, 2021, the cumulative percentage with at least one dose was 82.1% for the general population, 88.9% for RA, 87.4% for AS, 90.6% for PsA, 87.3% for PsO, and 87.0% for IBD. There was also a higher total cumulative percentage with two doses among IMIDs (83.8-88.2%) vs the general population (78.0%). The difference was also evident when stratifying by age. Individuals with IMIDs in the youngest age group initially had earlier uptake than the general population but remain the lowest age group with two doses (70.6% in the general population vs. 73.7-79.2% across IMID groups). CONCLUSION While implementation of COVID-19 vaccination programs has differed globally, these Canadian estimates are the first to reassuringly show higher COVID-19 vaccine uptake among individuals with IMIDs.
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Affiliation(s)
- Jessica Widdifield
- Institute of Health Policy, Management & Evaluation, University of Toronto, Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto; University of Toronto, and Women's College Research Institute, Women's College Hospital ICES; Department of Family and Community Medicine, Faculty of Medicine, University of Toronto; Dalla Lana School of Public Health, University of Toronto; Public Health Ontario, Toronto, Canada; Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba; Division of Rheumatology, Department of Medicine, University of British Columbia, Arthritis Research Canada; Arthritis Research Canada, and Division of Rheumatology, Department of Medicine, University of British Columbia; Analytics and Performance Reporting Branch, Alberta Health, Edmonton, Canada, Division of Preventive Medicine, University of Alberta, Edmonton, Canada, School of Public Health, University of Alberta, Edmonton, Canada, Department of Community Health Sciences, University of Calgary, Calgary, Canada; Divisions of Rheumatology and Clinical Epidemiology, Department of Medicine, McGill University Health Centre, Montreal, Quebec. Corresponding Author: Jessica Widdifield Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
| | - Lihi Eder
- Institute of Health Policy, Management & Evaluation, University of Toronto, Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto; University of Toronto, and Women's College Research Institute, Women's College Hospital ICES; Department of Family and Community Medicine, Faculty of Medicine, University of Toronto; Dalla Lana School of Public Health, University of Toronto; Public Health Ontario, Toronto, Canada; Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba; Division of Rheumatology, Department of Medicine, University of British Columbia, Arthritis Research Canada; Arthritis Research Canada, and Division of Rheumatology, Department of Medicine, University of British Columbia; Analytics and Performance Reporting Branch, Alberta Health, Edmonton, Canada, Division of Preventive Medicine, University of Alberta, Edmonton, Canada, School of Public Health, University of Alberta, Edmonton, Canada, Department of Community Health Sciences, University of Calgary, Calgary, Canada; Divisions of Rheumatology and Clinical Epidemiology, Department of Medicine, McGill University Health Centre, Montreal, Quebec. Corresponding Author: Jessica Widdifield Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
| | - Simon Chen
- Institute of Health Policy, Management & Evaluation, University of Toronto, Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto; University of Toronto, and Women's College Research Institute, Women's College Hospital ICES; Department of Family and Community Medicine, Faculty of Medicine, University of Toronto; Dalla Lana School of Public Health, University of Toronto; Public Health Ontario, Toronto, Canada; Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba; Division of Rheumatology, Department of Medicine, University of British Columbia, Arthritis Research Canada; Arthritis Research Canada, and Division of Rheumatology, Department of Medicine, University of British Columbia; Analytics and Performance Reporting Branch, Alberta Health, Edmonton, Canada, Division of Preventive Medicine, University of Alberta, Edmonton, Canada, School of Public Health, University of Alberta, Edmonton, Canada, Department of Community Health Sciences, University of Calgary, Calgary, Canada; Divisions of Rheumatology and Clinical Epidemiology, Department of Medicine, McGill University Health Centre, Montreal, Quebec. Corresponding Author: Jessica Widdifield Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
| | - Jeffrey C Kwong
- Institute of Health Policy, Management & Evaluation, University of Toronto, Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto; University of Toronto, and Women's College Research Institute, Women's College Hospital ICES; Department of Family and Community Medicine, Faculty of Medicine, University of Toronto; Dalla Lana School of Public Health, University of Toronto; Public Health Ontario, Toronto, Canada; Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba; Division of Rheumatology, Department of Medicine, University of British Columbia, Arthritis Research Canada; Arthritis Research Canada, and Division of Rheumatology, Department of Medicine, University of British Columbia; Analytics and Performance Reporting Branch, Alberta Health, Edmonton, Canada, Division of Preventive Medicine, University of Alberta, Edmonton, Canada, School of Public Health, University of Alberta, Edmonton, Canada, Department of Community Health Sciences, University of Calgary, Calgary, Canada; Divisions of Rheumatology and Clinical Epidemiology, Department of Medicine, McGill University Health Centre, Montreal, Quebec. Corresponding Author: Jessica Widdifield Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
| | - Carol Hitchon
- Institute of Health Policy, Management & Evaluation, University of Toronto, Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto; University of Toronto, and Women's College Research Institute, Women's College Hospital ICES; Department of Family and Community Medicine, Faculty of Medicine, University of Toronto; Dalla Lana School of Public Health, University of Toronto; Public Health Ontario, Toronto, Canada; Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba; Division of Rheumatology, Department of Medicine, University of British Columbia, Arthritis Research Canada; Arthritis Research Canada, and Division of Rheumatology, Department of Medicine, University of British Columbia; Analytics and Performance Reporting Branch, Alberta Health, Edmonton, Canada, Division of Preventive Medicine, University of Alberta, Edmonton, Canada, School of Public Health, University of Alberta, Edmonton, Canada, Department of Community Health Sciences, University of Calgary, Calgary, Canada; Divisions of Rheumatology and Clinical Epidemiology, Department of Medicine, McGill University Health Centre, Montreal, Quebec. Corresponding Author: Jessica Widdifield Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
| | - Diane Lacaille
- Institute of Health Policy, Management & Evaluation, University of Toronto, Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto; University of Toronto, and Women's College Research Institute, Women's College Hospital ICES; Department of Family and Community Medicine, Faculty of Medicine, University of Toronto; Dalla Lana School of Public Health, University of Toronto; Public Health Ontario, Toronto, Canada; Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba; Division of Rheumatology, Department of Medicine, University of British Columbia, Arthritis Research Canada; Arthritis Research Canada, and Division of Rheumatology, Department of Medicine, University of British Columbia; Analytics and Performance Reporting Branch, Alberta Health, Edmonton, Canada, Division of Preventive Medicine, University of Alberta, Edmonton, Canada, School of Public Health, University of Alberta, Edmonton, Canada, Department of Community Health Sciences, University of Calgary, Calgary, Canada; Divisions of Rheumatology and Clinical Epidemiology, Department of Medicine, McGill University Health Centre, Montreal, Quebec. Corresponding Author: Jessica Widdifield Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
| | - J Antonio Aviña-Zubieta
- Institute of Health Policy, Management & Evaluation, University of Toronto, Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto; University of Toronto, and Women's College Research Institute, Women's College Hospital ICES; Department of Family and Community Medicine, Faculty of Medicine, University of Toronto; Dalla Lana School of Public Health, University of Toronto; Public Health Ontario, Toronto, Canada; Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba; Division of Rheumatology, Department of Medicine, University of British Columbia, Arthritis Research Canada; Arthritis Research Canada, and Division of Rheumatology, Department of Medicine, University of British Columbia; Analytics and Performance Reporting Branch, Alberta Health, Edmonton, Canada, Division of Preventive Medicine, University of Alberta, Edmonton, Canada, School of Public Health, University of Alberta, Edmonton, Canada, Department of Community Health Sciences, University of Calgary, Calgary, Canada; Divisions of Rheumatology and Clinical Epidemiology, Department of Medicine, McGill University Health Centre, Montreal, Quebec. Corresponding Author: Jessica Widdifield Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
| | - Lawrence W Svenson
- Institute of Health Policy, Management & Evaluation, University of Toronto, Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto; University of Toronto, and Women's College Research Institute, Women's College Hospital ICES; Department of Family and Community Medicine, Faculty of Medicine, University of Toronto; Dalla Lana School of Public Health, University of Toronto; Public Health Ontario, Toronto, Canada; Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba; Division of Rheumatology, Department of Medicine, University of British Columbia, Arthritis Research Canada; Arthritis Research Canada, and Division of Rheumatology, Department of Medicine, University of British Columbia; Analytics and Performance Reporting Branch, Alberta Health, Edmonton, Canada, Division of Preventive Medicine, University of Alberta, Edmonton, Canada, School of Public Health, University of Alberta, Edmonton, Canada, Department of Community Health Sciences, University of Calgary, Calgary, Canada; Divisions of Rheumatology and Clinical Epidemiology, Department of Medicine, McGill University Health Centre, Montreal, Quebec. Corresponding Author: Jessica Widdifield Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
| | - Sasha Bernatsky
- Institute of Health Policy, Management & Evaluation, University of Toronto, Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto; University of Toronto, and Women's College Research Institute, Women's College Hospital ICES; Department of Family and Community Medicine, Faculty of Medicine, University of Toronto; Dalla Lana School of Public Health, University of Toronto; Public Health Ontario, Toronto, Canada; Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba; Division of Rheumatology, Department of Medicine, University of British Columbia, Arthritis Research Canada; Arthritis Research Canada, and Division of Rheumatology, Department of Medicine, University of British Columbia; Analytics and Performance Reporting Branch, Alberta Health, Edmonton, Canada, Division of Preventive Medicine, University of Alberta, Edmonton, Canada, School of Public Health, University of Alberta, Edmonton, Canada, Department of Community Health Sciences, University of Calgary, Calgary, Canada; Divisions of Rheumatology and Clinical Epidemiology, Department of Medicine, McGill University Health Centre, Montreal, Quebec. Corresponding Author: Jessica Widdifield Sunnybrook Research Institute, MG 352 - 2075 Bayview Ave, Toronto ON, M4N 3M5 E-mail:
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Pincus D, Widdifield J, Palmer KS, Paterson JM, Li A, Huang A, Wasserstein D, Lapointe-Shaw L, Brown A, Taljaard M, Ivers NM. Effects of hospital funding reform on wait times for hip fracture surgery: a population-based interrupted time-series analysis. BMC Health Serv Res 2021; 21:576. [PMID: 34120597 PMCID: PMC8201723 DOI: 10.1186/s12913-021-06601-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 06/03/2021] [Indexed: 11/23/2022] Open
Abstract
Background Health care funding reforms are being used worldwide to improve system performance but may invoke unintended consequences. We assessed the effects of introducing a targeted hospital funding model, based on fixed price and volume, for hip fractures. We hypothesized the policy change was associated with reduction in wait times for hip fracture surgery, increase in wait times for non-hip fracture surgery, and increase in the incidence of after-hours hip fracture surgery. Methods This was a population-based, interrupted time series analysis of 49,097 surgeries for hip fractures, 10,474 for ankle fractures, 1,594 for tibial plateau fractures, and 40,898 for appendectomy at all hospitals in Ontario, Canada between April 2012 and March 2017. We used segmented regression analysis of interrupted monthly time series data to evaluate the impact of funding reform enacted April 1, 2014 on wait time for hip fracture repair (from hospital presentation to surgery) and after-hours provision of surgery (occurring between 1700 and 0700 h). To assess potential adverse consequences of the reform, we also evaluated two control procedures, ankle and tibial plateau fracture surgery. Appendectomy served as a non-orthopedic tracer for assessment of secular trends. Results The difference (95 % confidence interval) between the actual mean wait time and the predicted rate had the policy change not occurred was − 0.46 h (-3.94 h, 3.03 h) for hip fractures, 1.46 h (-3.58 h, 6.50 h) for ankle fractures, -3.22 h (-39.39 h, 32.95 h) for tibial plateau fractures, and 0.33 h (-0.57 h, 1.24 h) for appendectomy (Figure 1; Table 3). The difference (95 % confidence interval) between the actual and predicted percentage of surgeries performed after-hours − 0.90 % (-3.91 %, 2.11 %) for hip fractures, -3.54 % (-11.25 %, 4.16 %) for ankle fractures, 7.09 % (-7.97 %, 22.14 %) for tibial plateau fractures, and 1.07 % (-2.45 %, 4.59 %) for appendectomy. Conclusions We found no significant effects of a targeted hospital funding model based on fixed price and volume on wait times or the provision of after-hours surgery. Other approaches for improving hip fracture wait times may be worth pursuing instead of funding reform. Supplementary Information The online version contains supplementary material available at 10.1186/s12913-021-06601-2.
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Affiliation(s)
- Daniel Pincus
- Department of Surgery, University of Toronto, 149 College Street, Room 508-A, ON, M5T 1P5, Toronto, Canada. .,ICES, Toronto, Canada. .,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada. .,Holland Bone & Joint Program, Sunnybrook Research Institute, Toronto, Canada.
| | - Jessica Widdifield
- ICES, Toronto, Canada.,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada
| | - Karen S Palmer
- Women's College Research Institute, Women's College Hospital, Toronto, ON, Canada.,Faculty of Health Sciences, Simon Fraser University, Burnaby, BC, Canada
| | - J Michael Paterson
- ICES, Toronto, Canada.,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada
| | - Alvin Li
- ICES, Toronto, Canada.,Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | | | - David Wasserstein
- Department of Surgery, University of Toronto, 149 College Street, Room 508-A, ON, M5T 1P5, Toronto, Canada.,Holland Bone & Joint Program, Sunnybrook Research Institute, Toronto, Canada
| | - Lauren Lapointe-Shaw
- ICES, Toronto, Canada.,Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Adalsteinn Brown
- ICES, Toronto, Canada.,Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada
| | | | - Noah M Ivers
- ICES, Toronto, Canada.,Women's College Research Institute, Women's College Hospital, Toronto, ON, Canada
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Eder L, Croxford R, Drucker A, Mendel A, Bindee K, Touma Z, Johnson S, Cook R, Bernatsky S, Haroon N, Widdifield J. POS0050 ARE PATIENTS WITH IMMUNE MEDIATED INFLAMMATORY DISEASES (IMID) MORE LIKELY TO RECEIVE COVID-19 TESTS AND TEST POSITIVE FOR SARS-COV-2? A MATCHED POPULATION-BASED STUDY. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Population-based data about the COVID-19 risk in patients with IMID remain scarce.Objectives:To investigate the cumulative incidence and risk factors for laboratory-confirmed COVID-19 infection and SARS-CoV2 testing in patients with IMID compared with matched non-IMID patients from the general population.Methods:A population-based, matched cohort study was conducted using health administrative data from adults living in Ontario, Canada from January to December 2020. Cohorts for each of the following IMID were assembled: rheumatoid arthritis (RA), psoriasis, psoriatic arthritis, ankylosing spondylitis, systemic autoimmune rheumatic diseases (including lupus, systemic sclerosis, Sjogren’s, inflammatory myositis), multiple sclerosis (MS), iritis, inflammatory bowel disease (IBD), polymyalgia rheumatica (PMR) and vasculitis. Each patient was matched with 5 non-IMID comparators based on age, sex, area of residence and living in long term care (LTC). Standardized cumulative rates of testing for SARS-CoV2, and for receiving a positive test between IMID and non-IMID were compared between IMID and non-IMID patients. Multivariable logistic regression analyses assessed sociodemographic factors associated with COVID-19 testing and positivity.Results:A total of 493,499 IMID patients and 2,466,946 non-IMID comparators were assessed. Significantly more IMID patients versus non-IMID were tested for SARS-CoV2 (27.4% vs. 22.7%), while the proportions of those positive for COVID-19 were identical (0.9% of all patients in both groups). Overall, IMID patients were more likely to undergo SARS-CoV2 testing (odds ratio (OR) 1.28, 95% CI 1.27, 1.29), but their overall risk of laboratory-confirmed COVID-19 was not elevated (OR 0.97 (95% CI 0.93, 1)). However, the risk of laboratory-confirmed COVID-19 infection was lower in IBD (OR 0.75), MS (OR 0.77) and psoriasis (OR 0.94) and marginally higher in RA (OR 1.07) and iritis (OR 1.13) compared with non-IMID comparators (Figure 1A). The highest standardized rates of COVID-19 infection were found in vasculitis (115 per 10,000 patients) and iritis (109 per 10,000 patients) (Figure 1B). Risk factors for COVID-19 infection included younger age, living in LTC, multimorbidity, urban living and lower income (Table 1).Conclusion:Patients across all IMID were more likely to be tested for COVID-19 versus non-IMID patients. IMID patients were not at higher risk for testing positive for COVID-19 as an overall group, yet risk varied across disease subgroups.Table 1.Factors associated with COVID-19 infection in IMID vs. Non-IMID – Multivariable Logistic RegressionVariableORCI 95%IMID vs. Non-IMID0.970.93, 1.00Age (10-year increase)0.890.89, 0.90Sex: Female vs. Males0.950.93, 0.97LTC18.6417.9, 19.42ADG score:•5-9 vs. 0-41.401.35, 1.45•10-14 vs. 0-41.731.67, 1.80•15+ vs. 0-41.181.13, 1.23Urban vs. Rural3.493.26, 3.72Income quintile•Quintile 2 vs. 10.920.89, 0.96•Quintile 3 vs. 10.900.86, 0.93•Quintile 4 vs. 10.730.70, 0.76•Quintile 5 vs. 10.600.58, 0.63ADG - Aggregated Diagnosis Groups; IMIDs – Immune medicated inflammatory disease; LTC – long term careAcknowledgements:The study is supported by ICES, which is funded by an annual grant from the Ontario Ministry of Health and Long-Term Care (MOHLTC). Parts of this material are based on data and information compiled and provided by MOHLTC and the Canadian Institute for Health Information. The opinions, results and conclusions reported in this paper are those of the authors and are independent of the funding or data sources; no endorsement is intended or should be inferred.Disclosure of Interests:None declared.
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Eder L, Croxford R, Drucker A, Mendel A, Bindee K, Touma Z, Cook R, Johnson S, Bernatsky S, Haroon N, Widdifield J. OP0285 COVID-19 HOSPITALIZATIONS, ICU ADMISSION, AND DEATH AMONG PATIENTS WITH IMMUNE MEDIATED INFLAMMATORY DISEASES (IMID) – A POPULATION-BASED STUDY. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:It remains unclear whether patients with IMID are at greater risk for severe COVID-19.Objectives:To investigate the risk of COVID-19 hospitalizations and their outcomes in patients with IMID compared with matched non-IMID patents from the general population.Methods:A population-based, matched cohort study was conducted in adults living in Ontario, Canada using health administrative data. Ten cohorts of the following IMID were assembled: rheumatoid arthritis, psoriasis, psoriatic arthritis, ankylosing spondylitis, systemic autoimmune rheumatic diseases (SARDs, including systemic lupus, systemic sclerosis, Sjogren’s, myositis), multiple sclerosis (MS), iritis, inflammatory bowel disease, polymyalgia rheumatica (PMR), and vasculitis (including giant cell arteritis and other types of vasculitidies). Each patient was matched with 5 non-IMID comparators based on age, sex, area of residence and living in long-term care (LTC). Patients who were admitted to hospital from January 1st to July 31th, 2020 and had ICD-10 COVID-19 diagnosis codes (U07.2 or U07.1) were identified. Among those with COVID-19 hospitalizations, we determined those with admissions to intensive care unit or required mechanical ventilation or died in hospital (‘complicated hospitalization’). Age-sex-standardized rates were compared between IMID and non-IMID patients and risk factors for hospitalizations were identified by multivariable logistic regression analysis.Results:In total, 493,499 IMID (417 hospitalized) and 2,466,946 non-IMID patients (1,519 hospitalized) were assessed. The age-sex-standardized rate of COVID-19 hospitalization was higher in IMID (6.4 per 10,000, 95% confidence interval (CI) 5.8, 7.2) versus non-IMID patients (4.8 per 100,000, 95% CI 4.5, 5). The highest rates of hospitalizations were found in vasculitis (18/10,000), MS (16.7/10,000) and PMR (10.1/10,000). IMID diagnosis was associated with 37% higher risk of being hospitalized for COVID-19 (Odds Ratio (OR) 1.37, 95% CI 1.23, 1.53) (Figure 1). This risk was slightly attenuated after adjusting for sociodemographic factors and comorbidities but remained elevated by 23% compared to non-IMID (OR 1.23, 95% CI 1.10, 1.37). The risk for hospitalizations was increased in RA, vasculitis, SARDs, PsA, MS and iritis (Figure 1). Risk factors for COVID-19 hospitalizations included older age, male sex, lower income, multimorbidity and living in long-term care (Table 1). The risk for complicated COVID-19 hospitalizations was higher by 21% in IMID patients (OR 1.21, 95% CI 1.02, 1.43), however, this association was attenuated after adjustment for demographics and comorbidities (OR 1.08).Table 1.Risk Factors for COVID-19 Hospitalizations in IMIDs vs. non-IMIDsVariableOR95% CIIMIDs vs. Non-IMID1.231.10, 1.37Age (10 yrs)1.491.44, 1.54Sex: Female0.680.62, 0.75Long term care resident8.287.32, 9.37ADG: 5-9 vs. 0-41.451.22, 1.7110-14 vs. 0-42.261.92, 2.6715+ vs. 0-43.232.73, 3.82Income (quintile) Quintile 2 vs. 10.820.73, 0.93 Quintile 3 vs. 10.760.67, 0.86 Quintile 4 vs. 10.560.48, 0.64 Quintile 5 vs. 10.460.40, 0.54Urban vs. rural4.333.32, 5.67ADG - Aggregated Diagnosis GroupsConclusion:Patients with IMID were at higher risk of being hospitalized with COVID-19 and for having complicated hospitalizations. Hospitalization risk was partially independent of their comorbid conditions.Acknowledgements:The study is supported by ICES, which is funded by an annual grant from the Ontario Ministry of Health and Long-Term Care (MOHLTC). Parts of this material are based on data and information compiled and provided by MOHLTC and the Canadian Institute for Health Information. The opinions, results and conclusions reported in this paper are those of the authors and are independent of the funding or data sources; no endorsement is intended or should be inferred.Disclosure of Interests:None declared
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Shamis J, Widdifield J, Batthish M, Mahendira D, Jamal S, Cividino A, Lethebe BC, Barber CE. Factors influencing rheumatology residents' decision on future practice location. Can Med Educ J 2021; 12:e63-e68. [PMID: 33995721 PMCID: PMC8105565 DOI: 10.36834/cmej.70348] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
BACKGROUND There are regional disparities in the distribution of Canadian rheumatologists. The objective of this study was to identify factors impacting rheumatology residents' postgraduate practice decisions to inform Canadian Rheumatology Association workforce recommendations. METHODS An online survey was developed, and invitations were sent to all current Canadian rheumatology residents in 2019 (n = 67). Differences between subgroups of respondents were examined using the Pearson χ2 test. RESULTS A total of 34 of 67 residents completed the survey. Seventy-three percent of residents planned to practice in the same province as their rheumatology training. The majority of residents (80%) ranked proximity to friends and family as the most important factor in planning. Half of participants had exposure to alternative modes of care delivery (e.g. telehealth) during their rheumatology training with fifteen completing a community rheumatology elective (44%). CONCLUSIONS The majority of rheumatology residents report plans to practice in the same province as they trained, and close to home. Gaps in training include limited exposure to community electives in smaller centers, and training in telehealth and travelling clinics for underserviced populations. Our findings highlight the need for strategies to increase exposure of rheumatology trainees to underserved areas to help address the maldistribution of rheumatologists.
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Affiliation(s)
- Justin Shamis
- Division of Rheumatology, Department of Medicine, University of Toronto, Ontario, Canada
| | - Jessica Widdifield
- Sunnybrook Research Institute, ICES, and Institute of Health Policy, Management & Evaluation, University of Toronto, Ontario, Canada
| | - Michelle Batthish
- Division of Rheumatology, Department of Pediatrics, McMaster University, Ontario, Canada
| | - Dharini Mahendira
- Division of Rheumatology, Department of Medicine, University of Toronto, Ontario, Canada
| | - Shahin Jamal
- Division of Rheumatology, Department of Medicine, University of British Columbia, British Columbia, Canada
| | - Alfred Cividino
- Division of Rheumatology, Department of Medicine, McMaster University, Ontario, Canada
| | - B Cord Lethebe
- Clinical Research Unit, University of Calgary, Alberta, Canada
| | - Claire E Barber
- Division of Rheumatology, Department of Medicine and Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, Alberta, Canada
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Widdifield J, Bernatsky S, Pope JE, Kuriya B, Barber CEH, Eder L, Ahluwalia V, Ling V, Gozdyra P, Hofstetter C, Lyddiatt A, Paterson JM, Thorne C. Evaluation of Rheumatology Workforce Supply Changes in Ontario, Canada, from 2000 to 2030. ACTA ACUST UNITED AC 2021; 16:119-134. [PMID: 33720829 PMCID: PMC7957360 DOI: 10.12927/hcpol.2021.26428] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Rheumatology workforces are increasingly challenged by too few physicians in face of the growing burden of rheumatic and musculoskeletal diseases (RMDs). Rheumatology is one of the most frequent non-surgical specialty referrals and has the longest wait times for subspecialists. We used a population-based approach to describe changes in the rheumatology workforce, patient volumes and geographic variation in the supply of and access to rheumatologists, in Ontario, Canada, between 2000 and 2019, and projected changes in supply by 2030. Over time, we observed greater feminization of the workforce and increasing age of workforce members. We identified a large regional variation in rheumatology supply. Fewer new patients are seen annually, which likely contributes to increasing wait times and reduced access to care. Strategies and policies to raise the critical mass and improve regional distribution of supply to effectively provide rheumatology care and support the healthcare delivery of patients with RMDs are needed.
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Affiliation(s)
- Jessica Widdifield
- Scientist, Sunnybrook Research Institute Holland Bone & Joint Program; Assistant Professor, University of Toronto, Institute of Health Policy, Management & Evaluation Toronto, ON; Scientist, ICES Toronto, ON
| | - Sasha Bernatsky
- Rheumatologist and Scientist, Research Institute of the McGill University Health Centre; Associate Professor, Department of Epidemiology, McGill University, Montreal, QC
| | - Janet E Pope
- Rheumatologist, St Joseph's Health Care London; Professor of Medicine Epidemiology and Biostatistics, Schulich School of Medicine & Dentistry, Western University London, ON
| | - Bindee Kuriya
- Rheumatologist, Sinai Health System; Assistant Professor, Department of Medicine, University of Toronto, Toronto, ON
| | - Claire E H Barber
- Rheumatologist, Assistant Professor, University of Calgary, Calgary, AB; Research Scientist, Arthritis Research Canada, Richmond, BC
| | - Lihi Eder
- Rheumatologist, Clinician Scientist, Women's College Research Institute, Toronto, ON
| | | | | | | | | | | | - J Michael Paterson
- Scientist, ICES, Toronto, ON; Assistant Professor, Department of Family Medicine, McMaster University, Hamilton, ON; Assistant Professor, University of Toronto, Institute of Health Policy, Management & Evaluation, Toronto, ON
| | - Carter Thorne
- Rheumatologist, Southlake Regional Health Centre, Newmarket, ON; Assistant Professor of Medicine, University of Toronto, Toronto, ON
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Kassardjian C, Widdifield J, Paterson JM, Kopp A, Nagamuthu C, Barnett C, Tu K, Breiner A. Fracture Risk in Patients with Myasthenia Gravis: A Population-Based Cohort Study. J Neuromuscul Dis 2021; 8:625-632. [PMID: 33554923 DOI: 10.3233/jnd-200612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Prednisone is a common treatment for myasthenia gravis (MG), and osteoporosis is a known potential risk of chronic prednisone therapy. OBJECTIVE Our aim was to evaluate the risk of serious fractures in a population-based cohort of MG patients. METHODS An inception cohort of patients with MG was identified from administrative health data in Ontario, Canada between April 1, 2002 and December 31, 2015. For each MG patient, we matched 4 general population comparators based on age, sex, and region of residence. Fractures were identified through emergency department and hospitalization data. Crude overall rates and sex-specific rates of fractures were calculated for the MG and comparator groups, as well as rates of specific fractures. Adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated using Cox regression. RESULTS Among 3,823 incident MG patients (followed for a mean of 5 years), 188 (4.9%) experienced a fracture compared with 741 (4.8%) fractures amongst 15,292 matched comparators. Crude fracture rates were not different between the MG cohort and matched comparators (8.71 vs. 7.98 per 1000 patient years), overall and in men and women separately. After controlling for multiple covariates, MG patients had a significantly lower risk of fracture than comparators (HR 0.74, 95% CI 0.63-0.88). CONCLUSIONS In this large, population-based cohort of incident MG patients, MG patients were at lower risk of a major fracture than comparators. The reasons for this finding are unclear but may highlight the importance osteoporosis prevention.
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Affiliation(s)
- Charles Kassardjian
- Department of Medicine, Division of Neurology, St. Michael's Hospital, Toronto, ON, Canada.,Neurology Quality and Innovation Lab, University of Toronto, Toronto, ON, Canada
| | - Jessica Widdifield
- Holland Bone & Joint Research Program, Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.,Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, ON, Canada.,ICES, Toronto, ON, Canada
| | - J Michael Paterson
- Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, ON, Canada.,ICES, Toronto, ON, Canada
| | | | | | - Carolina Barnett
- Ellen and Martin Prosserman Centre for Neuromuscular Diseases, Division of Neurology, Department of Medicine, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Karen Tu
- Department of Community and Family Medicine, North York General Hospital, University Health Network, Toronto, ON, Canada
| | - Ari Breiner
- Department of Medicine, Division of Neurology, The Ottawa Hospital, and Ottawa Hospital Research Institute, Ottawa, ON, Canada
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Barra L, Pope JE, Pequeno P, Gatley JM, Widdifield J. Increased mortality for individuals with Giant Cell Arteritis: a population-based study. Arthritis Care Res (Hoboken) 2021; 74:1294-1299. [PMID: 33544963 DOI: 10.1002/acr.24573] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 01/11/2021] [Accepted: 02/02/2021] [Indexed: 11/09/2022]
Abstract
BACKGROUND Reports of mortality risks among individuals with GCA have been mixed. Our aim was to evaluate all-cause mortality among individuals with GCA relative to the general population over time. METHODS We performed a population-based study in Ontario, Canada, using health administrative data. We studied a cohort of 22,677 GCA patients aged ≥50 years identified using a validated case definition (with 81% positive predictive value, 100% specificity). General population comparators were residents aged ≥50 years without GCA. Deaths were ascertained from vital statistics. Annual crude, age/sex-standardized and age- and sex-specific all-cause mortality rates were determined for individuals with and without GCA between 2000 and 2018. Standardized mortality ratios (SMRs) were estimated. RESULTS Age- and sex-standardized mortality rates were significantly higher for GCA patients than comparators, and trending to increase over time with 50.0 (95% confidence interval (CI) 34.0, 71.1) deaths per 1000 GCA patients in 2000 and 57.6 (95% CI 50.8, 65.2) deaths per 1000 in 2018, whereas mortality rates in the general population significantly declined over time. The annual SMRs for GCA patients generally increased over time with the lowest SMR occurring in 2002 (1.22; 95% CI 1.03, 1.40) and the highest in 2018 (1.92; 95% CI 1.81, 2.03). GCA mortality rates were more elevated for males than females. CONCLUSION Over a 19-year period, mortality rates were increased among GCA patients relative to the general population and more premature deaths were occurring in younger age groups. The relative excess mortality for GCA patients did not improve over time.
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Affiliation(s)
- Lillian Barra
- Department of Medicine, Western University, Schulich School of Medicine & Dentistry, London, Ontario, Canada.,Department of Medicine, St. Joseph's Health Care London, Ontario, Canada
| | - Janet E Pope
- Department of Medicine, Western University, Schulich School of Medicine & Dentistry, London, Ontario, Canada.,Department of Medicine, St. Joseph's Health Care London, Ontario, Canada
| | | | | | - Jessica Widdifield
- ICES, Toronto, Ontario, Canada.,Holland Bone & Joint Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, Ontario, Canada
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Barra L, Pope JE, Pequeno P, Saxena FE, Bell M, Haaland D, Widdifield J. Incidence and prevalence of giant cell arteritis in Ontario, Canada. Rheumatology (Oxford) 2021; 59:3250-3258. [PMID: 32249899 DOI: 10.1093/rheumatology/keaa095] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 02/06/2020] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE To estimate trends in the incidence and prevalence of GCA over time in Canada. METHODS We performed a population-based study of Ontario health administrative data using validated case definitions for GCA. Among Ontario residents ≥50 years of age we estimated the annual incidence and prevalence rates between 2000 and 2018. We performed sensitivity analyses using alternative validated case definitions to provide comparative estimates. RESULTS Between 2000 and 2018 there was a relatively stable incidence over time with 25 new cases per 100 000 people >50 years of age. Age-standardized incidence rates were significantly higher among females than males [31 cases (95% CI: 29, 34) vs 15 cases (95% CI: 13, 18) per 100 000 in 2000]. Trends in age-standardized incidence rates were stable among females but increased among males over time. Incidence rates were highest among those ≥70 years of age. Standardized prevalence rates increased from 125 (95% CI 121, 129) to 235 (95% CI 231, 239) cases per 100 000 from 2000 to 2018. The age-standardized rates among males rose from 76 (95% CI 72, 81) cases in 2000 to 156 (95% CI 151, 161) cases per 100 000 population in 2018. Between 2000 and 2018, the age-standardized rates among females similarly increased over time, from 167 (95% CI 161, 173) to 304 (95% CI 297, 310) cases per 100 000 population. CONCLUSION The incidence and prevalence of GCA in Ontario is similar to that reported in the USA and northern Europe and considerably higher than that reported for southern Europe and non-European populations.
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Affiliation(s)
- Lillian Barra
- Department of Medicine, Western University, Schulich School of Medicine & Dentistry, London, Ontario, Canada.,Department of Medicine, St. Joseph's Health Care London, Ontario, Canada
| | - Janet E Pope
- Department of Medicine, Western University, Schulich School of Medicine & Dentistry, London, Ontario, Canada.,Department of Medicine, St. Joseph's Health Care London, Ontario, Canada
| | | | | | - Mary Bell
- Holland Bone & Joint Program, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Derek Haaland
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada.,Department of Medicine, Northern Ontario School of Medicine, Laurentian University Campus, Sudbury, Ontario, Canada
| | - Jessica Widdifield
- ICES, Toronto, Ontario, Canada.,Holland Bone & Joint Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, Ontario, Canada
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Widdifield J, Gatley JM, Pope JE, Barber CEH, Kuriya B, Eder L, Thorne C, Ling V, Paterson JM, Ahluwalia V, Marks C, Bernatsky S. Feminization of the Rheumatology Workforce: A Longitudinal Evaluation of Patient Volumes, Practice Sizes, and Physician Remuneration. J Rheumatol 2020; 48:1090-1097. [PMID: 33262302 DOI: 10.3899/jrheum.201166] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/19/2020] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To compare differences in clinical activity and remuneration between male and female rheumatologists and to evaluate associations between physician gender and practice sizes and patient volume, accounting for rheumatologists' age, and calendar year effects. METHODS We conducted a population-based study in Ontario, Canada, between 2000 to 2015 identifying all rheumatologists practicing as full-time equivalents (FTEs) or above and assessed differences in practice sizes (number of unique patients), practice volumes (number of patient visits), and remuneration (total fee-for-service billings) between male and female rheumatologists. Multivariable linear regression was used to evaluate the effects of gender on practice size and volume separately, accounting for age and year. RESULTS The number of rheumatologists practicing at ≥ 1 FTE increased from 89 to 120 from 2000 to 2015, with the percentage of females increasing from 27.0% to 41.7%. Males had larger practice sizes and practice volumes. Remuneration was consistently higher for males (median difference of CAD $46,000-102,000 annually). Our adjusted analyses estimated that in a given year, males saw a mean of 606 (95% CI 107-1105) more patients than females did, and had 1059 (95% CI 345-1773) more patient visits. Among males and females combined, there was a small but statistically significant reduction in mean annual number of patient visits, and middle-aged rheumatologists had greater practice sizes and volumes than their younger/older counterparts. CONCLUSION On average, female rheumatologists saw fewer patients and had fewer patient visits annually relative to males, resulting in lower earnings. Increasing feminization necessitates workforce planning to ensure that populations' needs are met.
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Affiliation(s)
- Jessica Widdifield
- J. Widdifield, PhD, ICES, Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto, and Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, Ontario;
| | - Jodi M Gatley
- J.M. Gatley, MPH, V. Ling, MSc, ICES, Toronto, Ontario
| | - Janet E Pope
- J. E. Pope, MD, MPH, Division of Rheumatology, Western University, Schulich School of Medicine & Dentistry, and St Joseph's Health Care, London, Ontario
| | - Claire E H Barber
- C.E. Barber, MD, PhD, The Cumming School of Medicine, University of Calgary, Calgary, Alberta, and Arthritis Research Canada
| | - Bindee Kuriya
- B. Kuriya, MD, SM, Division of Rheumatology, University of Toronto, and Sinai Health System, Toronto, Ontario
| | - Lihi Eder
- L. Eder, MD, PhD, Women's College Research Institute, and University of Toronto, Toronto, Ontario
| | - Carter Thorne
- C. Thorne, MD, Department of Medicine, University of Toronto, Toronto, and Southlake Regional Health Centre, Newmarket, Ontario
| | - Vicki Ling
- J.M. Gatley, MPH, V. Ling, MSc, ICES, Toronto, Ontario
| | - J Michael Paterson
- J.M. Paterson, MSc, ICES, Toronto, and McMaster University, Department of Family Medicine, Hamilton, and Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, Ontario
| | | | - Courtney Marks
- C. Marks, Sunnybrook Research Institute, Holland Bone & Joint Program, Toronto, Ontario
| | - Sasha Bernatsky
- S. Bernatsky, MD, PhD, Department of Epidemiology, McGill University, and Research Institute of the McGill University Health Centre, Montreal, Québec, Canada
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Widdifield J, Jaakkimainen RL, Gatley JM, Hawker GA, Lix LM, Bernatsky S, Ravi B, Wasserstein D, Yu B, Tu K. Validation of canadian health administrative data algorithms for estimating trends in the incidence and prevalence of osteoarthritis. Osteoarthritis and Cartilage Open 2020; 2:100115. [DOI: 10.1016/j.ocarto.2020.100115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 10/26/2020] [Indexed: 10/23/2022] Open
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Barra L, Pope JE, Pequeno P, Saxena FE, Bell M, Haaland D, Widdifield J. Corrigendum to: Incidence and prevalence of giant cell arteritis in Ontario, Canada. Rheumatology (Oxford) 2020; 59:3584. [PMID: 32620970 DOI: 10.1093/rheumatology/keaa347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Lillian Barra
- Department of Medicine, Western University, Schulich School of Medicine & Dentistry, London, Ontario, Canada.,Department of Medicine, St. Joseph's Health Care London, Ontario, Canada
| | - Janet E Pope
- Department of Medicine, Western University, Schulich School of Medicine & Dentistry, London, Ontario, Canada.,Department of Medicine, St. Joseph's Health Care London, Ontario, Canada
| | | | | | - Mary Bell
- Holland Bone & Joint Program, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Derek Haaland
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada.,Department of Medicine, Northern Ontario School of Medicine, Laurentian University Campus, Sudbury, Ontario, Canada
| | - Jessica Widdifield
- ICES, Toronto, Ontario, Canada.,Holland Bone & Joint Program, Sunnybrook Research Institute, Toronto, Ontario, Canada.,Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, Ontario, Canada
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Barra L, Pope JE, Widdifield J. Comment on: Incidence and prevalence of giant cell arteritis in Ontario, Canada: reply. Rheumatology (Oxford) 2020; 59:e123-e124. [PMID: 32844177 DOI: 10.1093/rheumatology/keaa466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 05/15/2020] [Indexed: 11/14/2022] Open
Affiliation(s)
- Lillian Barra
- Division of Rheumatology, Department of Medicine, Western University, Schulich School of Medicine & Dentistry, St. Joseph's Health Care, London
| | - Janet E Pope
- Division of Rheumatology, Department of Medicine, Western University, Schulich School of Medicine & Dentistry, St. Joseph's Health Care, London
| | - Jessica Widdifield
- Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, ON, Canada
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Colaco K, Widdifield J, Luo J, Rosen CF, Alhusayen R, Paterson JM, Campbell W, Tu K, Bernatsky S, Gladman DD, Eder L. Trends in mortality and cause-specific mortality among patients with psoriasis and psoriatic arthritis in Ontario, Canada. J Am Acad Dermatol 2020; 84:1302-1309. [PMID: 33096129 DOI: 10.1016/j.jaad.2020.10.031] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/27/2020] [Accepted: 10/13/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND There is limited information about mortality rates among patients with psoriasis and psoriatic arthritis (PsA) in North America and their change over the past 2 decades. OBJECTIVE To compare all-cause and cause-specific mortality rates in patients with psoriasis to the general population in Ontario, Canada, from 1996 to 2016. METHODS We conducted a population-based, retrospective cohort study of adult residents using administrative health data. All-cause and cause-specific standardized mortality rates, standardized mortality ratios, and excess mortality rates were calculated. RESULTS 176,858 (2,524 deaths) patients with psoriasis and 15,430 (221 deaths) patients with PsA were identified in 2016. Patients with psoriasis and PsA had standardized excess mortality rates of 1.44 and 2.43 per 1000 population, respectively. Standardized mortality rates decreased by approximately 30% over the study period in both disease groups but remained significantly elevated compared to the general population. The leading causes of death in psoriasis and PsA patients were cancer, circulatory disease, and respiratory conditions. LIMITATIONS We were unable to classify patients according to disease severity. CONCLUSIONS Despite improvements in psoriasis treatment, the relative excess mortality, which may be related to risk factors for psoriatic disease, remained unchanged, with an average of approximately 1 to 2 extra deaths per 1,000 patients in 2016.
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Affiliation(s)
- Keith Colaco
- Women's College Hospital, Toronto, Canada; University Health Network, Toronto, Canada; University of Toronto, Toronto, Canada
| | - Jessica Widdifield
- University of Toronto, Toronto, Canada; ICES, Toronto, Canada; Sunnybrook Health Sciences Centre, Toronto, Canada
| | | | - Cheryl F Rosen
- University Health Network, Toronto, Canada; University of Toronto, Toronto, Canada
| | - Raed Alhusayen
- University of Toronto, Toronto, Canada; Sunnybrook Health Sciences Centre, Toronto, Canada
| | | | - Willemina Campbell
- University Health Network, Toronto, Canada; University of Toronto, Toronto, Canada
| | - Karen Tu
- University Health Network, Toronto, Canada; University of Toronto, Toronto, Canada; North York General Hospital, Toronto, Canada
| | | | - Dafna D Gladman
- University Health Network, Toronto, Canada; University of Toronto, Toronto, Canada
| | - Lihi Eder
- Women's College Hospital, Toronto, Canada; University of Toronto, Toronto, Canada.
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Kuriya B, Tia V, Luo J, Widdifield J, Vigod S, Haroon N. Acute mental health service use is increased in rheumatoid arthritis and ankylosing spondylitis: a population-based cohort study. Ther Adv Musculoskelet Dis 2020; 12:1759720X20921710. [PMID: 32550868 PMCID: PMC7278302 DOI: 10.1177/1759720x20921710] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 02/29/2020] [Indexed: 11/15/2022] Open
Abstract
Background Rheumatoid arthritis (RA) and ankylosing spondylitis (AS) are associated with mental illness. Whether acute mental health (MH) service utilization (i.e. emergency visits or hospitalizations) is increased in RA or AS is not known. Methods Two population-based cohorts were created where individuals with RA (n = 53,240) or AS (n = 13,964) were each matched by age, sex, and year to unaffected comparators (2002-2016). Incidence rates per 1000 person-years (PY) were calculated for a first MH emergency department (ED) presentation or MH hospitalization. Hazard ratios (HR) and 95% confidence intervals (CI) were calculated, adjusting for demographic, clinical, and health service use variables. Results Individuals with RA had higher rates of ED visits [6.59/1000 person-years (PY) versus 4.39/1000 PY in comparators] and hospitalizations for MH (3.11/1000 PY versus 1.80/1000 PY in comparators). Higher rates of ED visits (7.92/1000 PY versus 5.62/1000 PY in comparators) and hospitalizations (3.03/1000 PY versus 1.94/1000 PY in comparators) were also observed in AS. Overall, RA was associated with a 34% increased risk for MH hospitalization (HR 1.34, 95% CI 1.22-1.47) and AS was associated with a 36% increased risk of hospitalization (HR 1.36, 95% CI 1.12-1.63). The risk of ED presentation was attenuated, but remained significant, after adjustment in both RA (HR 1.08, 95% CI 1.01-1.15) and AS (HR 1.14, 95% CI 1.02-1.28). Conclusions RA and AS are both independently associated with a higher rate and risk of acute ED presentations and hospitalizations for mental health conditions. These findings underscore the need for routine evaluation of MH as part of the management of chronic inflammatory arthritis. Additional research is needed to identify the underlying individual characteristics, as well as system-level variation, which may explain these differences, and to help plan interventions to make MH service use more responsive to the needs of individuals living with RA and AS.
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Affiliation(s)
- Bindee Kuriya
- Division of Rheumatology, Sinai Health System, University of Toronto, 60 Murray Street, Room 2-008, Toronto, Ontario M5T 3L9, Canada
| | - Vivian Tia
- Schulich School of Medicine & Dentistry, Western University, London, Ontario, Canada
| | - Jin Luo
- ICES, Toronto, Ontario, Canada
| | | | | | - Nigil Haroon
- Krembil Research Institute, University Health Network, University of Toronto, Toronto, Ontario, Canada
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Barra L, Pope J, Pequeno P, Gatley J, Widdifield J. SAT0252 INCREASED MORTALITY FOR INDIVIDUALS WITH GIANT CELL ARTERITIS: A POPULATION-BASED STUDY. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.1879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Individuals with giant cell arteritis (GCA) are at increased risk of serious morbidity including cardiovascular disease and stroke. Yet the risk of mortality among individuals with GCA have produced conflicting reports1.Objectives:Our aim was to evaluate excess all-cause mortality among individuals with GCA relative to the general population over time.Methods:We performed a population-based study in Ontario, Canada, using health administrative data among all individuals 50 years and older. Individuals with GCA were identified using a validated case definition (81% PPV, 100% specificity). All Ontario residents aged 50 and above who do not have GCA served as the General Population comparators. Deaths occurring in each cohort each year were ascertained from vital statistics. Annual crude and age/sex standardized all-cause mortality rates were determined for individuals with and without GCA between 2000 and 2018. Standardized mortality ratios (SMRs) were calculated to measure relative excess mortality over time. Differences in mortality between sexes and ages were also evaluated.Results:Population denominators among individuals 50 years and older with GCA and the General Population increased over time with 12,792 GCA patients and 5,456,966 comparators by 2018. Annual standardized mortality rates among the comparators steadily declined over time and were significantly lower than GCA morality rates (Figure). Annual GCA mortality rates fluctuated between 42-61 deaths per 1000 population (with overlapping confidence intervals) during the same time period. SMRs for GCA ranged from 1.28 (95% CI 1.08,1.47) at the lowest in 2002 to 1.96 (95% CI 1.84, 2.07) at the highest in 2018. GCA mortality rates and SMRs were highest among males and younger age groups.Conclusion:Over a 19-year period, mortality has remained increased among GCA patients relative to the general population. GCA mortality rates were higher among males and more premature deaths were occurring at younger age groups. In our study, improvements to the relative excess mortality for GCA patients over time (mortality gap) did not occur. Understanding cause-specific mortality and other factors are necessary to inform contributors to premature mortality among GCA patients.References:[1]Hill CL, et al. Risk of mortality in patients with giant cell arteritis: a systematic review and meta-analysis. Semin Arthritis Rheum. 2017;46(4):513-9.Figure.Acknowledgments: :This study was supported by a CIORA grantDisclosure of Interests:Lillian Barra: None declared, Janet Pope Grant/research support from: AbbVie, Bristol-Myers Squibb, Eli Lilly & Company, Merck, Roche, Seattle Genetics, UCB, Consultant of: AbbVie, Actelion, Amgen, Bayer, Boehringer Ingelheim, Bristol-Myers Squibb, Eicos Sciences, Eli Lilly & Company, Emerald, Gilead Sciences, Inc., Janssen, Merck, Novartis, Pfizer, Roche, Sandoz, Sanofi, UCB, Speakers bureau: UCB, Priscila Pequeno: None declared, Jodi Gatley: None declared, Jessica Widdifield: None declared
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Kuriya B, Vigod S, Luo J, Widdifield J, Haroon N. The risk of deliberate self-harm following a diagnosis of rheumatoid arthritis or ankylosing spondylitis: A population-based cohort study. PLoS One 2020; 15:e0229273. [PMID: 32084192 PMCID: PMC7034875 DOI: 10.1371/journal.pone.0229273] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 02/03/2020] [Indexed: 11/27/2022] Open
Abstract
Objective Rheumatoid arthritis (RA) and ankylosing spondylitis (AS) are associated with mental illness. The risk of serious mental illness, including deliberate self-harm (DSH), in these conditions is not well known. We aimed to determine if RA or AS independently increases the risk for DSH. Methods We conducted retrospective, population-based cohort studies using administrative health data for the province of Ontario, Canada between April 1, 2002 and March 31, 2014. Individuals with incident RA (N = 53,240) or AS (N = 13,964) were separately matched 1:4 by age, sex, and year with comparators without RA or AS. The outcome was a first DSH attempt identified using emergency department data. We estimated hazard ratios (HR) and 95% confidence intervals (95% CI) for risk of DSH in RA and AS versus comparators, adjusting for demographic, clinical and health service utilization variables. Results Subjects with AS were significantly more likely to self-harm (crude incidence rate [IR] of 0.68/1,000 person years [PY] versus 0.32/1,000 PY in comparators), with an adjusted HR of 1.59 (95% CI 1.15 to 2.21). DSH was increased for RA subjects (IR 0.35/1,000 PY) versus comparators (IR 0.24/1,000 PY) only before (HR 1.43, 95% CI 1.16 to 1.74), but not after covariate adjustment (HR 1.07, 95% CI 0.86 to 1.33). Conclusions AS carries an increased risk for DSH but no such risk was observed in RA. Further evaluation of at-risk AS subjects is needed, including the longitudinal effects of disease and arthritis therapies on self-harm behaviour. This will inform whether specific risk-reduction strategies for DSH in inflammatory arthritis are needed.
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Affiliation(s)
- Bindee Kuriya
- Sinai Health System, University of Toronto, Toronto, Ontario, Canada
- * E-mail:
| | - Simone Vigod
- Women’s College Hospital, University of Toronto, Toronto, Ontario, Canada
- ICES, Toronto, Ontario, Canada
| | - Jin Luo
- ICES, Toronto, Ontario, Canada
| | - Jessica Widdifield
- ICES, Toronto, Ontario, Canada
- Holland Musculoskeletal Research Program, Sunnybrook Research Institute, Toronto, Ontario, Canada
- Institute of Health Policy, Management & Evaluation, University of Toronto, Toronto, Ontario, Canada
| | - Nigil Haroon
- Krembil Research Institute, University Health Network, University of Toronto, Toronto, Ontario, Canada
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Kassardjian CD, Widdifield J, Paterson JM, Kopp A, Nagamuthu C, Barnett C, Tu K, Breiner A. Serious infections in patients with myasthenia gravis: population‐based cohort study. Eur J Neurol 2020; 27:702-708. [DOI: 10.1111/ene.14153] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 01/09/2020] [Indexed: 11/29/2022]
Affiliation(s)
- C. D. Kassardjian
- Division of Neurology Department of Medicine St Michael's Hospital University of Toronto Toronto ON
| | - J. Widdifield
- Holland Bone & Joint Research Program Sunnybrook Health Sciences Centre Sunnybrook Research Institute Toronto ON
- Institute of Health Policy, Management & Evaluation University of Toronto Toronto ON
- ICES Toronto ON
| | - J. M. Paterson
- Institute of Health Policy, Management & Evaluation University of Toronto Toronto ON
- ICES Toronto ON
| | | | | | - C. Barnett
- Division of Neurology Department of Medicine Ellen and Martin Prosserman Centre for Neuromuscular Diseases University Health Network University of Toronto Toronto ON
| | - K. Tu
- Department of Community and Family Medicine North York General Hospital University Health Network Toronto ON
| | - A. Breiner
- Division of Neurology Department of Medicine The Ottawa Hospital and Ottawa Hospital Research Institute Ottawa ON Canada
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