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Codling D, Mueller C, Patel J, Stewart R, Arya R, Roberts L. Rates of venous thromboembolism associated with acute psychiatric admission: A retrospective cohort study. Exp Ther Med 2024; 27:188. [PMID: 38533433 PMCID: PMC10964734 DOI: 10.3892/etm.2024.12476] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 01/30/2024] [Indexed: 03/28/2024] Open
Abstract
The present study aimed to identify rates of venous thromboembolism (VTE) amongst patients treated in inpatient mental health units using linked primary care and mental health care records. Patients resident in the London Borough of Lambeth admitted to mental health units in Southeast London between January 2008 and March 2019 were included, as well as a control group of patients being treated in the community for mental illness. The primary outcome measure was a diagnosis of VTE being recorded in GP records during or within 3 months of an admission to a mental health unit. For 7,198 psychiatric inpatient admissions, 11 episodes of VTE (1.5/1,000 admissions) were identified, with no VTE cases identified in 4,561 patients being treated in the community for mental illness during an equivalent window. This finding indicates that VTE rates following psychiatric inpatient admission might be similar to those following unselected acute medical admission. Larger scale studies are required to confirm the estimated incidence of VTE in patients with mental health conditions and the contribution of acute psychiatry hospitalisation to VTE risk.
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Affiliation(s)
- David Codling
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE5 8AF, United Kingdom
- South London and Maudsley NHS Foundation Trust, London SE5 8AZ, United Kingdom
| | - Christoph Mueller
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE5 8AF, United Kingdom
- South London and Maudsley NHS Foundation Trust, London SE5 8AZ, United Kingdom
| | - Jignesh Patel
- Institute of Pharmaceutical Science, King's College London, London SE1 9NH, United Kingdom
| | - Robert Stewart
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE5 8AF, United Kingdom
- South London and Maudsley NHS Foundation Trust, London SE5 8AZ, United Kingdom
| | - Roopen Arya
- King's Thrombosis Centre, Department of Haematological Medicine, King's College Hospital, London SE5 9RS, United Kingdom
| | - Lara Roberts
- King's Thrombosis Centre, Department of Haematological Medicine, King's College Hospital, London SE5 9RS, United Kingdom
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Yorganci E, Sleeman KE, Sampson EL, Stewart R. Survival and critical care use among people with dementia in a large English cohort. Age Ageing 2023; 52:afad157. [PMID: 37678881 PMCID: PMC10484725 DOI: 10.1093/ageing/afad157] [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: 12/02/2022] [Indexed: 09/09/2023] Open
Abstract
BACKGROUND Admitting people with dementia to critical care units may not always lead to a clear survival benefit. Critical care admissions of people with dementia vary across countries. Little is known about the use and trends of critical care admissions of people with dementia in England. OBJECTIVE To investigate critical care use and survival among people with dementia in a large London catchment area. METHODS A retrospective cohort study using data from dementia assessment services in south London, UK (2007-20) linked with national hospitalisation data to ascertain critical care admissions. Outcomes included age-sex-standardised critical care use and 1-year post-critical care admission survival by dementia severity (binary: mild versus moderate/severe). We used logistic regression and Kaplan-Meier survival plots for investigating 1-year survival following a critical care admission and linear regressions for time trends. RESULTS Of 19,787 people diagnosed with dementia, 726 (3.7%) had ≥1 critical care admission at any time after receiving their dementia diagnosis. The overall 1-year survival of people with dementia, who had a CCA, was 47.5% (n = 345). Dementia severity was not associated with 1-year survival following a critical care admission (mild dementia versus moderate-severe dementia odds of 1-year mortality OR: 0.90, 95% CI [0.66-1.22]). Over the 12-year period from 2008 to 2019, overall critical care use decreased (β = -0.05; 95% CI = -0.01, -0.0003; P = 0.03), while critical care admissions occurring during the last year of life increased (β = 0.11, 95% CI = 0.01, 0.20, P = 0.03). CONCLUSIONS In this cohort, while critical care use among people with dementia declined overall, its use increased among those in their last year of life. Survival remains comparable to that observed in general older populations.
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Affiliation(s)
- Emel Yorganci
- Cicely Saunders Institute of Palliative Care, Policy & Rehabilitation, King's College London, Florence Nightingale Faculty of Nursing, Midwifery & Palliative Care, London SE5 9PJ, UK
| | - Katherine E Sleeman
- Cicely Saunders Institute of Palliative Care, Policy & Rehabilitation, King's College London, Florence Nightingale Faculty of Nursing, Midwifery & Palliative Care, London SE5 9PJ, UK
| | - Elizabeth L Sampson
- Division of Psychiatry, University College London, London W1T 7NF, UK
- Liaison Psychiatry, Royal London Hospital, East London NHS Foundation Trust, London E1 1FR, UK
| | - Robert Stewart
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London SE5 8AB, UK
- South London and Maudsley NHS Foundation Trust, London SE5 8AB, UK
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Chen S, Wang Y, Mueller C. Code-Based Algorithms for Identifying Dementia in Electronic Health Records: Bridging the Gap Between Theory and Practice. J Alzheimers Dis 2023; 95:941-943. [PMID: 37718822 DOI: 10.3233/jad-230887] [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] [Indexed: 09/19/2023]
Abstract
Code-based algorithms are crucial tools in the detection of dementia using electronic health record data, with broad applications in medical research and healthcare. Vassilaki et al.'s study explores the efficacy of code-based algorithms in dementia detection using electronic health record data, achieving approximately 70% sensitivity and positive predictive value. Despite the promising results, the algorithms fail to detect around 30% of dementia cases, highlighting challenges in distinguishing cognitive decline factors. The study emphasizes the need for algorithmic improvements and further exploration across diverse healthcare systems and populations, serving as a critical step toward bridging gaps in dementia care and understanding.
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Affiliation(s)
- Shanquan Chen
- International Centre for Evidence in Disability, London School of Hygiene & Tropical Medicine, London, UK
| | - Yuqi Wang
- Department of Computer Science, University College London, London, UK
| | - Christoph Mueller
- King's College London, London, UK
- South London and Maudsley NHS Foundation Trust, London, UK
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Wojt IR, Lau ECY, Cairns R, Tan ECK. Poisonings in Older People with Dementia: A Systematic Scoping Review and Meta-Analysis. J Alzheimers Dis 2023; 95:1351-1370. [PMID: 37694366 DOI: 10.3233/jad-230246] [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] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
BACKGROUND Older people with dementia are at a particularly high risk of poisonings and their subsequent harms. OBJECTIVE This review aimed to describe the key agents, incidence, risk factors, and disposition of poisonings in people with dementia reported in the literature. METHODS Medline, Embase, CINAHL, and PsycINFO databases were searched from 1 September 2001 to 1 September 2021. Terms for dementia, poisonings, and older adults formed the search concepts. Quantitative studies published in English, describing poisonings in older people with dementia, including Alzheimer's disease, were included. Two investigators independently assessed articles for eligibility and extracted relevant data. A meta-analysis of the incidence of poisonings in people with dementia across studies was performed. RESULTS Of 4,579 articles, 18 were included for final synthesis. Nervous system medications were implicated in over half of all medicinal poisonings, with anti-dementia agents, benzodiazepines, and opioids the most common classes. The non-medicinal agents frequently associated with poisonings were personal care and household products. The yearly incidence of poisoning varied across definitions of poisoning from 3% for International Classification of Disease-defined poisonings to 43% for adverse drug event-defined poisonings. Several risk factors were identified, including multimorbidity, psychotropic medication use, and living in residential care. Where described, up to one in five poisonings resulted in hospitalisation and in death. CONCLUSIONS Poisonings are common in people with dementia, involving commonly prescribed medications or easily accessible substances. Given the significant outcomes associated, further research is required to better understand these poisonings and improve public health strategies to reduce the occurrence of this preventable harm.
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Affiliation(s)
- Ilsa R Wojt
- The University of Sydney, School of Pharmacy, Faculty of Medicine and Health, Sydney, New South Wales, Australia
| | - Edward C Y Lau
- The University of Sydney, School of Pharmacy, Faculty of Medicine and Health, Sydney, New South Wales, Australia
| | - Rose Cairns
- The University of Sydney, School of Pharmacy, Faculty of Medicine and Health, Sydney, New South Wales, Australia
- New South Wales Poisons Information Centre, The Children's Hospital at Westmead, New South Wales, Australia
| | - Edwin C K Tan
- The University of Sydney, School of Pharmacy, Faculty of Medicine and Health, Sydney, New South Wales, Australia
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Newby D, Linden AB, Fernandes M, Molero Y, Winchester L, Sproviero W, Ghose U, Li QS, Launer LJ, Duijn CMV, Nevado-Holgado AJ. Comparative effect of metformin versus sulfonylureas with dementia and Parkinson's disease risk in US patients over 50 with type 2 diabetes mellitus. BMJ Open Diabetes Res Care 2022; 10:10/5/e003036. [PMID: 36109050 PMCID: PMC9478804 DOI: 10.1136/bmjdrc-2022-003036] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 08/28/2022] [Indexed: 11/26/2022] Open
Abstract
INTRODUCTION Type 2 diabetes is a risk factor for dementia and Parkinson's disease (PD). Drug treatments for diabetes, such as metformin, could be used as novel treatments for these neurological conditions. Using electronic health records from the USA (OPTUM EHR) we aimed to assess the association of metformin with all-cause dementia, dementia subtypes and PD compared with sulfonylureas. RESEARCH DESIGN AND METHODS A new user comparator study design was conducted in patients ≥50 years old with diabetes who were new users of metformin or sulfonylureas between 2006 and 2018. Primary outcomes were all-cause dementia and PD. Secondary outcomes were Alzheimer's disease (AD), vascular dementia (VD) and mild cognitive impairment (MCI). Cox proportional hazards models with inverse probability of treatment weighting (IPTW) were used to estimate the HRs. Subanalyses included stratification by age, race, renal function, and glycemic control. RESULTS We identified 96 140 and 16 451 new users of metformin and sulfonylureas, respectively. Mean age was 66.4±8.2 years (48% male, 83% Caucasian). Over the 5-year follow-up, 3207 patients developed all-cause dementia (2256 (2.3%) metformin, 951 (5.8%) sulfonylurea users) and 760 patients developed PD (625 (0.7%) metformin, 135 (0.8%) sulfonylurea users). After IPTW, HRs for all-cause dementia and PD were 0.80 (95% CI 0.73 to 0.88) and 1.00 (95% CI 0.79 to 1.28). HRs for AD, VD and MCI were 0.81 (0.70-0.94), 0.79 (0.63-1.00) and 0.91 (0.79-1.04). Stronger associations were observed in patients who were younger (<75 years old), Caucasian, and with moderate renal function. CONCLUSIONS Metformin users compared with sulfonylurea users were associated with a lower risk of all-cause dementia, AD and VD but not with PD or MCI. Age and renal function modified risk reduction. Our findings support the hypothesis that metformin provides more neuroprotection for dementia than sulfonylureas but not for PD, but further work is required to assess causality.
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Affiliation(s)
- Danielle Newby
- Psychiatry, University of Oxford, Oxford, UK
- Centre for Statistics in Medicine, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | | | | | - Yasmina Molero
- Clinical Neuroscience, Center for Psychiatry Research, Karolinska Institute, Stockholm, Sweden
- Medical Epidemiology and Biostatistics, Karolinska Institute, Stockholm, Sweden
| | | | | | | | - Qingqin S Li
- Neuroscience, Janssen Research and Development, Titusville, New Jersey, USA
| | - Lenore J Launer
- Laboratory of Epidemiology and Population Science, National Institute on Aging, Bethesda, Maryland, USA
| | - Cornelia M van Duijn
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
- Department of Epidemiology, Erasmus MC, Rotterdam, Netherlands
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Shih YJ, Wang JY, Wang YH, Shih RR, Yang YJ. Analyses and identification of ICD codes for dementias in the research based on the NHIRD: a scoping review protocol. BMJ Open 2022; 12:e062654. [PMID: 35948384 PMCID: PMC9379469 DOI: 10.1136/bmjopen-2022-062654] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
INTRODUCTION Studies based on health claims data (HCD) have been increasingly adopted in medical research for their strengths in large sample size and abundant information, and the Taiwan National Health Insurance Research Database (NHIRD) has been widely used in medical research across disciplines, including dementia. How the diagnostic codes are applied to define the diseases/conditions of interest is pivotal in HCD-related research, but the consensus on the issue that diagnostic codes most appropriately define dementias in the NHIRD is lacking. The objectives of this scoping review are (1) to investigate the relevant characteristics in the published reports targeting dementias based on the NHIRD, and (2) to address the diversity by a case study. METHODS AND ANALYSIS This scoping review protocol follows the methodological framework of the Joanna Briggs Institute Reviewer's Manual and the guidance of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for scoping reviews. The review will be performed between 1 March and 31 December 2022 in five stages, including identifying the relevant studies, developing search strategies, individually screening and selecting evidence, collecting and extracting data, and summarising and reporting the results. The electronic databases of MEDLINE, EMBASE, CENTRAL, CINAHL, and PsycINFO, Airiti Library Academic Database, the National Health Insurance Administration's repository, and Taiwan Government Research Bulletin will be searched. We will perform narrative syntheses of the results to address research questions and will analyse the prevalence across the included individual studies as a case study. ETHICS AND DISSEMINATION Our scoping review is a review of the published reports and ethical approval is not required. The results will provide a panorama of the dementia studies based on the NHIRD. We will disseminate our findings through peer-reviewed journals and conferences, and share with stakeholders by distributing the summaries in social media and emails.
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Affiliation(s)
- Ying-Jyun Shih
- Department of Healthcare Administration, Asia University College of Medical and Health Science, Taichung City, Taiwan
- Department of Nursing, Tsaotun Psychiatric Center, Ministry of Health and Welfare, Tsaotun Township, Nan-Tou County, Taiwan
| | - Jiun-Yi Wang
- Department of Healthcare Administration, Asia University College of Medical and Health Science, Taichung City, Taiwan
| | - Ya-Hui Wang
- Department of Nursing, Tsaotun Psychiatric Center, Ministry of Health and Welfare, Tsaotun Township, Nan-Tou County, Taiwan
| | - Rong-Rong Shih
- Department of Nursing, Tsaotun Psychiatric Center, Ministry of Health and Welfare, Tsaotun Township, Nan-Tou County, Taiwan
| | - Yung-Jen Yang
- Social Science Research Unit (SSRU), Institue of Education, University College London, London, UK
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Luo J, Liao X, Zou C, Zhao Q, Yao Y, Fang X, Spicer J. Identifying Frail Patients by Using Electronic Health Records in Primary Care: Current Status and Future Directions. Front Public Health 2022; 10:901068. [PMID: 35812471 PMCID: PMC9256951 DOI: 10.3389/fpubh.2022.901068] [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] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/31/2022] [Indexed: 11/21/2022] Open
Abstract
With the rapidly aging population, frailty, characterized by an increased risk of adverse outcomes, has become a major public health problem globally. Several frailty guidelines or consensuses recommend screening for frailty, especially in primary care settings. However, most of the frailty assessment tools are based on questionnaires or physical examinations, adding to the clinical workload, which is the major obstacle to converting frailty research into clinical practice. Medical data naturally generated by routine clinical work containing frailty indicators are stored in electronic health records (EHRs) (also called electronic health record (EHR) data), which provide resources and possibilities for frailty assessment. We reviewed several frailty assessment tools based on primary care EHRs and summarized the features and novel usage of these tools, as well as challenges and trends. Further research is needed to develop and validate frailty assessment tools based on EHRs in primary care in other parts of the world.
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Affiliation(s)
- Jianzhao Luo
- International Medical Centre/Ward of General Practice and National Clinical Research Centre for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoyang Liao
- International Medical Centre/Ward of General Practice and National Clinical Research Centre for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Xiaoyang Liao ; orcid.org/0000000344099674
| | - Chuan Zou
- Department of General Practice, Chengdu Fifth People's Hospital, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qian Zhao
- International Medical Centre/Ward of General Practice and National Clinical Research Centre for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- Qian Zhao ; orcid.org/0000000295405726
| | - Yi Yao
- International Medical Centre/Ward of General Practice and National Clinical Research Centre for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - Xiang Fang
- International Medical Centre/Ward of General Practice and National Clinical Research Centre for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
| | - John Spicer
- GP and Senior Lecturer in Medical Law and Clinical Ethics, Institute of Medical and Biomedical Education, St George's University of London, London, United Kingdom
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Hayat S, Luben R, Khaw KT, Wareham N, Brayne C. Evaluation of routinely collected records for dementia outcomes in UK: a prospective cohort study. BMJ Open 2022; 12:e060931. [PMID: 35705339 PMCID: PMC9204445 DOI: 10.1136/bmjopen-2022-060931] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
OBJECTIVES To evaluate the characteristics of individuals recorded as having a dementia diagnosis in different routinely collected records and to examine the extent of overlap of dementia coding across data sources. Also, to present comparisons of secondary and primary care records providing value for researchers using routinely collected records for dementia outcome capture. STUDY DESIGN A prospective cohort study. SETTING AND PARTICIPANTS A cohort of 25 639 men and women in Norfolk, aged 40-79 years at recruitment (1993-1997) followed until 2018 linked to routinely collected to identify dementia cases. Data sources include mortality from death certification and National Health Service (NHS) hospital or secondary care records. Primary care records for a subset of the cohort were also reviewed. PRIMARY OUTCOME MEASURE Diagnosis of dementia (any-cause). RESULTS Over 2000 participants (n=2635 individuals) were found to have a dementia diagnosis recorded in one or more of the data sources examined. Limited concordance was observed across the secondary care data sources. We also observed discrepancies with primary care records for the subset and report on potential linkage-related selection bias. CONCLUSIONS Use of different types of record linkage from varying parts of the UK's health system reveals differences in recorded dementia diagnosis, indicating that dementia can be identified to varying extents in different parts of the NHS system. However, there is considerable variation, and limited overlap in those identified. We present potential selection biases that might occur depending on whether cause of death, or primary and secondary care data sources are used. With the expansion of using routinely collected health data, researchers must be aware of these potential biases and inaccuracies, reporting carefully on the likely extent of limitations and challenges of the data sources they use.
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Affiliation(s)
- Shabina Hayat
- Department of Psychiatry, University of Cambridge, Cambridge, Cambridgeshire, UK
| | - Robert Luben
- MRC Epidemiology Unit, Cambridge, Cambridgeshire, UK
- NIHR Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust & UCL Institute of Ophthalmology, London, UK
| | - Kay-Tee Khaw
- MRC Epidemiology Unit, Cambridge, Cambridgeshire, UK
| | | | - Carol Brayne
- Department of Psychiatry, University of Cambridge, Cambridge, Cambridgeshire, UK
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Yorganci E, Stewart R, Sampson EL, Sleeman KE. Patterns of unplanned hospital admissions among people with dementia: from diagnosis to the end of life. Age Ageing 2022; 51:afac098. [PMID: 35581158 PMCID: PMC9113942 DOI: 10.1093/ageing/afac098] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND hospitalisations are sentinel events for people with dementia. How patterns of unplanned hospital admissions change among people with dementia after diagnosis is relatively unknown. OBJECTIVE to describe patterns of unplanned hospital admissions of people with dementia from diagnosis until death/study end. METHODS retrospective cohort study using mental healthcare provider data of people diagnosed with dementia in London, UK (1995-2017), linked to mortality and hospital data. The primary outcome was the rate of unplanned hospital admissions after diagnosis until death/study end. We calculated the cumulative incidence of unplanned hospital admissions. The rates of unplanned hospital admissions and the percentage of time spent as an inpatient were stratified by time from first dementia diagnosis. RESULTS for 19,221 people with dementia (61.4% female, mean age at diagnosis 81.0 years (standard deviation, SD 8.5)), the cumulative incidence of unplanned hospital admissions (n = 14,759) was 76.8% (95% CI 76.3%-77.3%). Individuals remained in the study for mean 3.0 (SD 2.6) years, and 12,667 (65.9%) died. Rates and lengths of unplanned hospital admissions remained relatively low and short in the months after the dementia diagnosis, increasing only as people approached the end of life. Percentage of time spent as an inpatient was <3% for people who were alive at the study end but was on average 19.6 and 13.3% for the decedents in the last 6 and 12 months of life, respectively. CONCLUSIONS the steep rise in hospitalisations before death highlights the need for improved community care and services for people with dementia who are approaching the end of life.
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Affiliation(s)
- Emel Yorganci
- Cicely Saunders Institute of Palliative Care, Policy & Rehabilitation, King’s College London, Florence Nightingale Faculty of Nursing, Midwifery & Palliative Care, London, UK
| | - Robert Stewart
- Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- Mental Health of Older Adults, South London and Maudsley NHS Foundation Trust, London, UK
| | - Elizabeth L Sampson
- Department of Psychological Medicine, Royal London Hospital, East London NHS Foundation Trust, London, UK
- Division of Psychiatry, University College London, London, UK
| | - Katherine E Sleeman
- Cicely Saunders Institute of Palliative Care, Policy & Rehabilitation, King’s College London, Florence Nightingale Faculty of Nursing, Midwifery & Palliative Care, London, UK
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