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Li R, Wang J, Zhang C, Squires JE, Belle SH, Ning J, Cai J, Squires RH. Improved mortality prediction for pediatric acute liver failure using dynamic prediction strategy. J Pediatr Gastroenterol Nutr 2024; 78:320-327. [PMID: 38374548 PMCID: PMC10879686 DOI: 10.1002/jpn3.12094] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 09/10/2023] [Accepted: 09/23/2023] [Indexed: 02/21/2024]
Abstract
OBJECTIVES To develop and validate a prediction tool for pediatric acute liver failure (PALF) mortality risks that captures the rapid and heterogeneous clinical course for accurate and updated prediction. METHODS Data included 1144 participants with PALF enrolled during three phases of the PALF registry study over 15 years. Using joint modeling, we built a dynamic prediction tool for mortality by combining longitudinal trajectories of multiple laboratory and clinical variables. The predictive performance for 7-day and 21-day mortality was assessed using the area under curve (AUC) through cross-validation and split-by-time validation. RESULTS We constructed a prognostic joint model that combines the temporal trajectories of international normalized ratio, total bilirubin, hepatic encephalopathy, platelet count, and serum creatinine. Dynamic prediction using updated information improved predictive performance over static prediction using the information at enrollment (Day 0) only. In cross-validation, AUC increased from 0.784 to 0.887 when measurements obtained between Days 1 and 2 were incorporated. AUC remained similar when we used the earlier subset of the sample for training and the later subset for testing. CONCLUSIONS Serial measurements of five variables in the first few days of PALF capture the dynamic clinical course of the disease and improve risk prediction for mortality. Continuous disease monitoring and updating risk prognosis are beneficial for timely and judicious medical decisions.
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Affiliation(s)
- Ruosha Li
- Department of Biostatistics and Data Sciences, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Jingyan Wang
- Department of Biostatistics and Data Sciences, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Cuihong Zhang
- Department of Biostatistics and Data Sciences, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - James E. Squires
- Division of Pediatric Gastroenterology and Hepatology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Steven H. Belle
- Department of Epidemiology, University of Pittsburgh School of Public Health, Pittsburgh, Pennsylvania, USA
| | - Jing Ning
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Jianwen Cai
- Department of Biostatistics, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Robert H. Squires
- Division of Pediatric Gastroenterology and Hepatology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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Zhang C, Ning J, Cai J, Squires JE, Belle SH, Li R. Dynamic risk score modeling for multiple longitudinal risk factors and survival. Comput Stat Data Anal 2024; 189:107837. [PMID: 37720873 PMCID: PMC10501111 DOI: 10.1016/j.csda.2023.107837] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
Modeling disease risk and survival using longitudinal risk factor trajectories is of interest in various clinical scenarios. The capacity to build a prognostic model using the trajectories of multiple longitudinal risk factors, in the presence of potential dependent censoring, would enable more informed, personalized decision making. A dynamic risk score modeling framework is proposed for multiple longitudinal risk factors and survival in the presence of dependent censoring, where both events depend on participants' post-baseline clinical progression and form a competing risks structure. The model requires relatively few random effects regardless of the number of longitudinal risk factors and can therefore accommodate multiple longitudinal risk factors in a parsimonious manner. The proposed method performed satisfactorily in extensive simulation studies. It is further applied to the motivating registry study on pediatric acute liver failure to model death using the trajectories of multiple clinical and biochemical markers. Once established, the model yields an easily calculable longitudinal risk score that can be used for disease monitoring among future patients.
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Affiliation(s)
- Cuihong Zhang
- Department of Biostatistics & Data Science, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Jing Ning
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jianwen Cai
- Department of Biostatistics, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - James E. Squires
- Division of Gastroenterology, Hepatology, and Nutrition, UPMC Children’s Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Steven H. Belle
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Ruosha Li
- Department of Biostatistics & Data Science, The University of Texas Health Science Center at Houston, Houston, TX, USA
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Perrillo R, Lok AS, Leonard K, Ghany MG, Terrault N, Belle SH, Janssen HLA. Association of Alanine Aminotransferase Flares to Hepatitis B Surface Decline During Tenofovir Alone or With Pegylated Interferon Alfa. Am J Gastroenterol 2023; 118:2075-2079. [PMID: 37307571 DOI: 10.14309/ajg.0000000000002355] [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: 02/15/2023] [Accepted: 05/25/2023] [Indexed: 06/14/2023]
Abstract
INTRODUCTION We aimed to determine whether the intensity of alanine aminotransferase (ALT) flares during antiviral therapy is associated with the level of hepatitis B surface antigen (HBsAg) decline. METHODS Quantitative HBsAg was determined during tenofovir monotherapy or tenofovir plus peginterferon alfa-2a in 201 participants with hepatitis B e antigen-positive or -negative chronic hepatitis B. A multivariable analysis identified factors associated with a shorter time to reduction in HBsAg. RESULTS Fifty flares occurred during treatment of which 74% were moderate (ALT >5-10 × upper limit of normal) or severe (ALT >10 × upper limit of normal). These flares were associated with greater HBsAg decline compared with no flares. Significantly faster times to HBsAg decline >1 log 10 IU ( P = 0.04) and to HBsAg level <100 IU/mL ( P = 0.01) were observed with severe flares. DISCUSSIONS Flare severity is a potentially important factor associated with shorter time to HBsAg reduction. These findings can be useful when evaluating HBsAg response to evolving hepatitis B virus therapies.
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Affiliation(s)
| | - Anna S Lok
- Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, Michigan, USA
| | - Kelsey Leonard
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Marc G Ghany
- Liver Diseases Branch, National Institutes of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Norah Terrault
- Gastrointestinal and Liver Diseases Division, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Steven H Belle
- Departments of Epidemiology and Biostatistics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Harry L A Janssen
- Toronto Centre for Liver Diseases, University Health Network, Toronto, Ontario, Canada
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Feld JJ, Wahed AS, Fried M, Ghany MG, Di Bisceglie AM, Perrillo RP, Khalili M, Yang X, Belle SH, Janssen HL, Terrault N, Lok AS. Withdrawal of Long-Term Nucleotide Analog Therapy in Chronic Hepatitis B: Outcomes From the Withdrawal Phase of the HBRN Immune Active Treatment Trial. Am J Gastroenterol 2023; 118:1226-1236. [PMID: 36728214 PMCID: PMC10298187 DOI: 10.14309/ajg.0000000000002176] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 11/21/2022] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Withdrawal of nucleos(t)ide analog therapy is increasingly being evaluated in chronic hepatitis B infection as a strategy to induce hepatitis B surface antigen (HBsAg) loss. The Hepatitis B Research Network Immune-Active Trial evaluated treatment with tenofovir (TDF) for 4 years ± an initial 6 months of peginterferon-α (PegIFN) (NCT01369212) after which treatment was withdrawn. METHODS Eligible participants (hepatitis B e antigen [HBeAg]-/anti-HBe+, hepatitis B virus [HBV] DNA <10 3 IU/mL, no cirrhosis) who discontinued TDF were followed for at least 1 year with optional follow-up thereafter. Retreatment was based on predefined criteria. RESULTS Among 201 participants who received 4 years of treatment, 97 participants (45 TDF and 52 TDF + PegIFN arm, 79 Asian) discontinued TDF. HBsAg loss occurred in 5 participants, 2 within 25 weeks and 3 within 89-119 weeks postwithdrawal (cumulative rate 4.3% by 2 years). Alanine aminotransferase (ALT) flares (>5× upper limit of normal) after TDF withdrawal occurred in 36 (37.1%) participants and occurred more frequently and earlier in those HBeAg- compared with HBeAg+ at treatment initiation. ALT flares were associated with older age and higher HBV DNA pretreatment and at the visit before the flare. ALT flares were not significantly associated with HBsAg decline or loss but were associated with immune active disease at 1 year (70.6% vs 11.9%, P < 0.0001) and 2 years (66.7% vs 25.9%, P = 0.03) postwithdrawal. Treatment reinitiation was required in 13 (13.4%) participants, and 13 others remained in a sustained inactive carrier state by the end of the study follow-up. No criteria reliably predicted safe treatment withdrawal. DISCUSSION Results from this trial do not support TDF withdrawal as a therapeutic strategy. HBsAg loss was infrequent within 2 years of stopping long-term TDF. If withdrawal is considered, HBV DNA should be carefully monitored with reinitiation of therapy if levels rise above 4 log 10 IU/mL to reduce the risk of ALT flares, as they were not associated with subsequent HBsAg decline or loss.
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Affiliation(s)
- Jordan J. Feld
- Toronto Centre for Liver Disease, University of Toronto University Health Network, Toronto, Ontario, Canada
- Department of Medicine, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Abdus S. Wahed
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Michael Fried
- Department of Medicine, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Marc G. Ghany
- Liver Diseases Branch, NIDDK, NIH, Bethesda, Maryland, USA
| | - Adrian M. Di Bisceglie
- Department of Medicine, St. Louis University School of Medicine, St. Louis, Michigan, USA
| | - Robert P. Perrillo
- Department of Medicine, Baylor Scott and White Medical Center, Dallas, Texas, USA
| | - Mandana Khalili
- Department of Medicine, University of California San Francisco, San Francisco, California, USA
| | - Xue Yang
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Steven H. Belle
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Harry L.A. Janssen
- Toronto Centre for Liver Disease, University of Toronto University Health Network, Toronto, Ontario, Canada
- Department of Medicine, Erasmus Medical Center, Rotterdam, the Netherlands
| | - Norah Terrault
- Department of Medicine, University of Southern California, Los Angeles, California, USA
| | - Anna S. Lok
- Department of Medicine, University of Michigan, Ann Arbor, Michigan, USA
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Ghany MG, Belle SH, Kleiner DE, Smith C, Kelley SS, Rosenthal P, Fontana RJ. Safety and yield of percutaneous liver biopsy in adults and children with chronic hepatitis B: Results from a prospective, multicenter study. Hepatol Commun 2023; 7:e0116. [PMID: 37184524 PMCID: PMC10187861 DOI: 10.1097/hc9.0000000000000116] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 02/08/2023] [Indexed: 05/16/2023] Open
Abstract
BACKGROUND Prospective data regarding the safety and yield of liver biopsy in both adults and children with chronic hepatitis B are limited. The aim of this study is to report safety, yield, and complication rates among adults and children with chronic hepatitis B undergoing percutaneous liver biopsy. METHODS Data on the indication for procedural characteristics and complication rate for liver biopsies performed as part of the Hepatitis B Research Network were prospectively recorded on a study case report form and analyzed in aggregate. RESULTS Among 2506 adult and pediatric subjects enrolled in the Hepatitis B Research Network between 2011 and 2018, 465 (19%) underwent 491 liver biopsies for clinical or research reasons. Adequate liver tissue was obtained in 98% of the procedures. In total, there were 32 complications reported for 24 biopsies: 23 biopsies with 30 complications in adults and 1 biopsy with 2 complications in children. Pain (n=19) and vasovagal reaction (n=6) were the most common complications. There were 7 serious adverse events, including an arterioportal venous fistula, a pneumothorax, 4 cases of bleeding, and severe pain with no associated condition. There were no deaths. CONCLUSIONS These data demonstrate that percutaneous liver biopsy is associated with a high yield of tissue (98%) and a rate of serious complications of 1.4% in both children and adults with chronic HBV. These results support the focused use of liver biopsy in the evaluation of novel treatments in development for chronic hepatitis B.
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Affiliation(s)
- Marc G. Ghany
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Steven H. Belle
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - David E. Kleiner
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Coleman Smith
- Georgetown University, Washington, District of Columbia, USA
| | - Stephanie S. Kelley
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Philip Rosenthal
- University of California San Francisco, San Francisco, California, USA
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Khalili M, Leonard KR, Ghany MG, Hassan M, Roberts LR, Sterling RK, Belle SH, Lok AS. Racial Disparities in Treatment Initiation and Outcomes of Chronic Hepatitis B Virus Infection in North America. JAMA Netw Open 2023; 6:e237018. [PMID: 37036707 PMCID: PMC10087055 DOI: 10.1001/jamanetworkopen.2023.7018] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/11/2023] Open
Abstract
Importance Disparities in treatment initiation may affect outcomes, but data on racially diverse populations with chronic hepatitis B virus (HBV) infection are limited. Objective To examine whether HBV treatment initiation and outcomes differ among racial groups. Design, Setting, and Participants From January 14, 2011, to January 28, 2018, hepatitis B surface antigen-positive adults (age ≥18 years) not receiving anti-HBV therapy were enrolled and followed up at weeks 12, 24, and every 24 weeks thereafter in a multicenter longitudinal cohort study (Hepatitis B Research Network [HBRN] adult cohort study) conducted in North America. The last study visit and data collection were completed January 28, 2019. Data were analyzed from August 27, 2021, to August 25, 2022. All HBRN participants were included unless they had acute HBV, HIV, hepatitis C or D, less than 24-weeks of follow-up after enrollment, initiated treatment at or immediately after enrollment, or had unknown race. Exposures Participants had clinical and laboratory assessments and could receive anti-HBV treatment after enrollment. Main Outcomes and Measures Hepatitis B virus treatment initiation and major adverse liver outcomes (hepatic decompensation, hepatocellular carcinoma, liver transplant, and death). Results Of 1550 participants, 193 (12%) were African American or Black, 1157 (75%) were Asian, 157 (10%) were White, and 43 (3%) were other races; 789 (51%) were women, and the median age was 41.2 (IQR, 32.9-51.6) years. Sociodemographic and virologic parameters differed between groups. During 5727 person-years of follow-up, 504 participants initiated treatment, with incidences of 4.8 per 100 person-years in African American or Black individuals, 9.9 per 100 person-years in Asian individuals, 6.6 per 100 person-years in White individuals, and 7.9 per 100 person-years in those of other races (P < .001). A lower proportion (14%) of African American or Black participants met treatment criteria compared with Asian (22%) and White (27%) individuals (P = .01). The cumulative probabilities of treatment initiation after meeting the criteria were not significantly different among racial groups (African American or Black, 0.45; Asian, 0.38; White, 0.40 at 48 weeks and African American or Black, 0.45; Asian, 0.51; White, 0.51 at 72 weeks; P = .68). The incidence of major adverse liver outcomes was 0.1 per 100 person-years and did not differ by race. Conclusions and Relevance In this observational study of chronic HBV, African American or Black participants were less likely than individuals of other races to meet treatment criteria, but among those who did, HBV treatment receipt did not differ significantly by race or socioeconomic factors. Not all eligible participants initiated treatment, but adverse liver outcomes were rare. These findings may not be generalizable to patients with chronic HBV receiving care in other settings.
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Affiliation(s)
- Mandana Khalili
- Division of Gastroenterology and Hepatology, University of California, San Francisco
| | - Kelsey R Leonard
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Marc G Ghany
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland
| | - Mohamed Hassan
- Division of Gastroenterology, Hepatology and Nutrition, University of Minnesota, Minneapolis
| | - Lewis R Roberts
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Richard K Sterling
- Division of Gastroenterology, Hepatology, and Nutrition, Virginia Commonwealth University, Richmond
| | - Steven H Belle
- Department of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Biostatistics, School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Anna S Lok
- Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor
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King WC, Hinerman AS, White GE, Courcoulas AP, Belle SH. Associations Between Physical Activity and Changes in Depressive Symptoms and Health-related Quality of Life Across 7 Years After Roux-en-Y Gastric Bypass Surgery: A Multicenter Prospective Cohort Study. Ann Surg 2022; 276:e777-e783. [PMID: 33234795 PMCID: PMC10362941 DOI: 10.1097/sla.0000000000004652] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To examine associations of objectively-measured free-living physical activity (PA) with changes in depressive symptoms and mental and physical health-related quality of life (HRQoL) over 7 years after Roux-en-Y gastric bypass surgery (RYGB). BACKGROUND The contributions of PA to improvements in mental and physical health after RYGB, independent of weight loss, are unclear. METHODS Adults undergoing RYGB in a US multi-center cohort study wore an activity monitor and completed the Beck depression inventory (BDI) and 36-Item Short Form Health Survey (SF-36) annually ≤7 years (N = 646; 78% female, median age 47 years, median body mass index 46kg/m 2 ). Linear mixed models estimated associations of quartiles of steps, sedentary behavior (SB), and moderate-to-vigorous intensity physical activity (MVPA), respectively, with pre-to-post-surgery changes in the BDI and SF-36 mental component summary and physical component summary scores, respectively, over 1-7 years post-surgery, with adjustment for sex, age, race, pre-surgerybody mass index, the respective pre-surgery score, treatment for depression (time-varying) and pre-to-post-surgery weight change (time-varying). RESULTS There were dose-response associations between steps, SB (inverse) and MVPA quartiles, respectively, with improvements in each score. Across follow-up, mean improvements in the BDI, Mental Component Summary and physical component summary scores, were 1.9 [95% confidence interval (CI), 1.0-2.8], 3.1 (95% CI, 1.5-4.7), and 4.0 (95% CI, 2.7-5.4) points higher, respectively, in the highest versus lowest steps quartile. CONCLUSION Among adults who underwent RYGB, multiple objective PA measures were associated with decreases in depressive symptoms and improvements in mental and physical HRQoL throughout 7 years, independent of weight loss, indicating PA is a modifiable behavior to augment outcomes.
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Affiliation(s)
- Wendy C King
- Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Amanda S Hinerman
- Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Gretchen E White
- General and internal Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
- Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Anita P Courcoulas
- Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Steven H Belle
- Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
- Biostatistics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
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Zhang C, Ning J, Belle SH, Squires RH, Cai J, Li R. Assessing predictive discrimination performance of biomarkers in the presence of treatment-induced dependent censoring. J R Stat Soc Ser C Appl Stat 2022; 71:1137-1157. [PMID: 36466585 PMCID: PMC9717493 DOI: 10.1111/rssc.12571] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
In medical studies, some therapeutic decisions could lead to dependent censoring for the survival outcome of interest. This is exemplified by a study of paediatric acute liver failure, where death was subject to dependent censoring due to liver transplantation. Existing methods for assessing the predictive performance of biomarkers often pose the independent censoring assumption and are thus not applicable. In this work, we propose to tackle the dependence between the failure event and dependent censoring event using auxiliary information in multiple longitudinal risk factors. We propose estimators of sensitivity, specificity and area under curve, to discern the predictive power of biomarkers for the failure event by removing the disturbance of dependent censoring. Point estimation and inferential procedures were developed by adopting the joint modelling framework. The proposed methods performed satisfactorily in extensive simulation studies. We applied them to examine the predictive value of various biomarkers and risk scores for mortality in the motivating example.
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Affiliation(s)
- Cuihong Zhang
- Department of Biostatistics and Data Science, The University of Texas Health Science Center at Houston, Houston, USA
| | - Jing Ning
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Steven H. Belle
- Department of Epidemiology, The University of Pittsburgh, Pittsburgh, USA
| | - Robert H. Squires
- Department of Pediatrics, The University of Pittsburgh and Children’s Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, USA
| | - Jianwen Cai
- Department of Biostatistics, University of North Carolina at Chapel Hill, Chapel Hill, USA
| | - Ruosha Li
- Department of Biostatistics and Data Science, The University of Texas Health Science Center at Houston, Houston, USA
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Ware J, Boughton CK, Allen JM, Wilinska ME, Tauschmann M, Denvir L, Thankamony A, Campbell FM, Wadwa RP, Buckingham BA, Davis N, DiMeglio LA, Mauras N, Besser REJ, Ghatak A, Weinzimer SA, Hood KK, Fox DS, Kanapka L, Kollman C, Sibayan J, Beck RW, Hovorka R, Hovorka R, Acerini CL, Thankamony A, Allen JM, Boughton CK, Dovc K, Dunger DB, Ware J, Musolino G, Tauschmann M, Wilinska ME, Hayes JF, Hartnell S, Slegtenhorst S, Ruan Y, Haydock M, Mangat J, Denvir L, Kanthagnany SK, Law J, Randell T, Sachdev P, Saxton M, Coupe A, Stafford S, Ball A, Keeton R, Cresswell R, Crate L, Cripps H, Fazackerley H, Looby L, Navarra H, Saddington C, Smith V, Verhoeven V, Bratt S, Khan N, Moyes L, Sandhu K, West C, Wadwa RP, Alonso G, Forlenza G, Slover R, Towers L, Berget C, Coakley A, Escobar E, Jost E, Lange S, Messer L, Thivener K, Campbell FM, Yong J, Metcalfe E, Allen M, Ambler S, Waheed S, Exall J, Tulip J, Buckingham BA, Ekhlaspour L, Maahs D, Norlander L, Jacobson T, Twon M, Weir C, Leverenz B, Keller J, Davis N, Kumaran A, Trevelyan N, Dewar H, Price G, Crouch G, Ensom R, Haskell L, Lueddeke LM, Mauras N, Benson M, Bird K, Englert K, Permuy J, Ponthieux K, Marrero-Hernandez J, DiMeglio LA, Ismail H, Jolivette H, Sanchez J, Woerner S, Kirchner M, Mullen M, Tebbe M, Besser REJ, Basu S, London R, Makaya T, Ryan F, Megson C, Bowen-Morris J, Haest J, Law R, Stamford I, Ghatak A, Deakin M, Phelan K, Thornborough K, Shakeshaft J, Weinzimer SA, Cengiz E, Sherr JL, Van Name M, Weyman K, Carria L, Steffen A, Zgorski M, Sibayan J, Beck RW, Borgman S, Davis J, Rusnak J, Hellman A, Cheng P, Kanapka L, Kollman C, McCarthy C, Chalasani S, Hood KK, Hanes S, Viana J, Lanning M, Fox DS, Arreaza-Rubin G, Eggerman T, Green N, Janicek R, Gabrielson D, Belle SH, Castle J, Green J, Legault L, Willi SM, Wysham C. Cambridge hybrid closed-loop algorithm in children and adolescents with type 1 diabetes: a multicentre 6-month randomised controlled trial. Lancet Digit Health 2022; 4:e245-e255. [PMID: 35272971 DOI: 10.1016/s2589-7500(22)00020-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 12/10/2021] [Accepted: 01/25/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Closed-loop insulin delivery systems have the potential to address suboptimal glucose control in children and adolescents with type 1 diabetes. We compared safety and efficacy of the Cambridge hybrid closed-loop algorithm with usual care over 6 months in this population. METHODS In a multicentre, multinational, parallel randomised controlled trial, participants aged 6-18 years using insulin pump therapy were recruited at seven UK and five US paediatric diabetes centres. Key inclusion criteria were diagnosis of type 1 diabetes for at least 12 months, insulin pump therapy for at least 3 months, and screening HbA1c levels between 53 and 86 mmol/mol (7·0-10·0%). Using block randomisation and central randomisation software, we randomly assigned participants to either closed-loop insulin delivery (closed-loop group) or to usual care with insulin pump therapy (control group) for 6 months. Randomisation was stratified at each centre by local baseline HbA1c. The Cambridge closed-loop algorithm running on a smartphone was used with either (1) a modified Medtronic 640G pump, Medtronic Guardian 3 sensor, and Medtronic prototype phone enclosure (FlorenceM configuration), or (2) a Sooil Dana RS pump and Dexcom G6 sensor (CamAPS FX configuration). The primary endpoint was change in HbA1c at 6 months combining data from both configurations. The primary analysis was done in all randomised patients (intention to treat). Trial registration ClinicalTrials.gov, NCT02925299. FINDINGS Of 147 people initially screened, 133 participants (mean age 13·0 years [SD 2·8]; 57% female, 43% male) were randomly assigned to either the closed-loop group (n=65) or the control group (n=68). Mean baseline HbA1c was 8·2% (SD 0·7) in the closed-loop group and 8·3% (0·7) in the control group. At 6 months, HbA1c was lower in the closed-loop group than in the control group (between-group difference -3·5 mmol/mol (95% CI -6·5 to -0·5 [-0·32 percentage points, -0·59 to -0·04]; p=0·023). Closed-loop usage was low with FlorenceM due to failing phone enclosures (median 40% [IQR 26-53]), but consistently high with CamAPS FX (93% [88-96]), impacting efficacy. A total of 155 adverse events occurred after randomisation (67 in the closed-loop group, 88 in the control group), including seven severe hypoglycaemia events (four in the closed-loop group, three in the control group), two diabetic ketoacidosis events (both in the closed-loop group), and two non-treatment-related serious adverse events. There were 23 reportable hyperglycaemia events (11 in the closed-loop group, 12 in the control group), which did not meet criteria for diabetic ketoacidosis. INTERPRETATION The Cambridge hybrid closed-loop algorithm had an acceptable safety profile, and improved glycaemic control in children and adolescents with type 1 diabetes. To ensure optimal efficacy of the closed-loop system, usage needs to be consistently high, as demonstrated with CamAPS FX. FUNDING National Institute of Diabetes and Digestive and Kidney Diseases.
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Rapsinski GJ, Freeman MC, Haidar G, Belle SH, Hasskamp JH, Wheeler SE. Pediatric SARS-CoV-2 seroprevalence during mitigation procedures in Southwestern Pennsylvania. J Clin Virol Plus 2022; 1:100026. [PMID: 35262012 PMCID: PMC8186957 DOI: 10.1016/j.jcvp.2021.100026] [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: 02/17/2021] [Revised: 06/04/2021] [Accepted: 06/07/2021] [Indexed: 01/08/2023] Open
Abstract
Background Children infected with SARS-CoV-2 are often asymptomatic or have only mild symptoms, leading to underestimation of disease prevalence in symptom-based testing strategies. Objectives This study sought to determine pediatric SARS-CoV-2 disease burden during local mitigation efforts by using antibody testing to compare seroprevalence estimates to cumulative PCR prevalence estimates. Study design In this cross-sectional study, we collected 1142 strict phase and 1196 relaxed phase remnant blood specimens from patients less than 19-years-old in southwestern Pennsylvania (SWPA). Patients were excluded if their residential zip code was outside the region of interest, if they were under 6-months-old, or they had recently received antibody-modifying treatments. Demographic, encounter, and laboratory electronic medical record information was extracted. Samples were tested for SARS-CoV-2 spike protein IgG using an EUA ELISA, and PCR results were recorded from county health department data. Seroprevalence and Clopper-Pearson exact 95% confidence intervals were calculated. Results The observed seroprevalence of SARS-CoV-2 spike protein antibodies in children during strictest mitigation was 0.53% (95% CI 0.19, 1.14) and 0.92% (95% CI 0.46,1.64) during moderately relaxed. Strict and relaxed phase PCR-based prevalence were significantly higher, 2.87% (95% CI 1.95, 4.08) and 3.64 (95% CI 3.01, 4.38), respectively. Conclusions Estimates of pediatric seroprevalence were significantly lower than cumulative PCR prevalence estimates, and less than adult seroprevalence estimates, potentially due to biological, population, or sampling differences. Biological differences in pediatric immune responses to SARS-CoV-2 may make serosurvey interpretation challenging and these differences warrant further study.
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Affiliation(s)
- Glenn J Rapsinski
- UPMC Children's Hospital of Pittsburgh, Department of Pediatrics, Division of Infectious Diseases, Pittsburgh, PA USA.,Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA USA
| | - Megan Culler Freeman
- UPMC Children's Hospital of Pittsburgh, Department of Pediatrics, Division of Infectious Diseases, Pittsburgh, PA USA
| | - Ghady Haidar
- Department of Medicine, University of Pittsburgh School of Medicine, and Division of Infectious Diseases, UPMC, Pittsburgh, PA USA
| | - Steven H Belle
- Department of Epidemiology and Department of Biostatistics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA USA
| | - Joanne H Hasskamp
- University of Pittsburgh, School of Medicine, Department of Critical Care Medicine, Pittsburgh, PA USA
| | - Sarah E Wheeler
- University of Pittsburgh, School of Medicine, Department of Pathology, UPMC Department of Pathology Divisions of Clinical Immunopathology and Clinical Chemistry, Pittsburgh, PA USA
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11
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King WC, White GE, Belle SH, Yanovski SZ, Pomp A, Pories WJ, Wolfe BM, Ahmed B, Courcoulas AP. Changes in Smoking Behavior Before and After Gastric Bypass: A 7-year Study. Ann Surg 2022; 275:131-139. [PMID: 32084036 DOI: 10.1097/sla.0000000000003828] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To evaluate smoking history and change in smoking behavior, from 1 year before through 7 years after Roux-en-Y gastric bypass (RYGB) surgery, and to identify risk factors for post-surgery smoking. BACKGROUND Smoking behavior in the context of bariatric surgery is poorly described. METHODS Adults undergoing RYGB surgery entered a prospective cohort study between 2006 and 2009 and were followed up to 7 years until ≤2015. Participants (N = 1770; 80% female, median age 45 years, median body mass index 47 kg/m2) self-reported smoking history pre-surgery, and current smoking behavior annually. RESULTS Almost half of participants (45.2%) reported a pre-surgery history of smoking. Modeled prevalence of current smoking decreased in the year before surgery from 13.7% [95% confidence interval (CI) = 12.1-15.4] to 2.2% (95% CI = 1.5-2.9) at surgery, then increased to 9.6% (95% CI = 8.1-11.2) 1-year post-surgery and continued to increase to 14.0% (95% CI = 11.8-16.0) 7-years post-surgery. Among smokers, mean packs/day was 0.60 (95% CI = 0.44-0.77) at surgery, 0.70 (95% CI = 0.62-0.78) 1-year post-surgery and 0.77 (95% CI = 0.68-0.88) 7-years post-surgery. At 7-years, smoking was reported by 61.7% (95% CI = 51.9-70.8) of participants who smoked 1-year pre-surgery (n = 221), 12.3% (95% CI = 8.5-15.7) of participants who formerly smoked but quit >1 year pre-surgery (n = 507), and 3.8% (95% CI = 2.1-4.9) of participants who reported no smoking history (n = 887). Along with smoking history (ie, less time since smoked), younger age, household income <$25,000, being married or living as married, and illicit drug use were independently associated with increased risk of post-surgery smoking. CONCLUSION Although most adults who smoked 1-year before RYGB quit pre-surgery, smoking prevalence rebounded across 7-years, primarily due to relapse.
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Affiliation(s)
- Wendy C King
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Gretchen E White
- Department of Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Steven H Belle
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Susan Z Yanovski
- Division of Digestive Diseases and Nutrition, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland
| | - Alfons Pomp
- Department of Surgery, Weill Cornell Medical College, New York, New York
| | - Walter J Pories
- Department of Surgery, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - Bruce M Wolfe
- Department of Surgery, Oregon Health & Sciences University, Portland, Oregon
| | - Bestoun Ahmed
- Department of Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Anita P Courcoulas
- Department of Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
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12
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Lok AS, Perrillo R, Lalama CM, Fried MW, Belle SH, Ghany MG, Khalili M, Fontana RJ, Sterling RK, Terrault N, Feld JJ, Di Bisceglie AM, Lau DT, Hassan M, Janssen HL, Roberts LR, Lisker‐Melman M, Wong DK, Juan J, Yim C, Patel K, Lee WM, Murakami CS, Do S, Han SB, Tran TT, Cooper SL, Tsai N, Younoszai B, Muir A, Evon D, Darling JM, Carithers RC, Kowdley KV, Wang CC, Luketic VA, Jake Liang T, Hoofnagle JH, Doo E, Chang K, Park J, Wahed A, King WC, Kleiner D. Low Incidence of Adverse Outcomes in Adults With Chronic Hepatitis B Virus Infection in the Era of Antiviral Therapy. Hepatology 2021; 73:2124-2140. [PMID: 32936969 PMCID: PMC8546406 DOI: 10.1002/hep.31554] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 06/17/2020] [Revised: 07/28/2020] [Accepted: 08/19/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND AIMS Outcomes of persons with chronic hepatitis B virus (HBV) infection in the era of antiviral therapy (AVT) are not well characterized. We determined the incidence and factors associated with clinical outcomes in a multiethnic, North American cohort of adults with chronic HBV infection, who were not on AVT at enrollment. APPROACH AND RESULTS Adults with chronic HBV infection, not receiving AVT, and without a history of decompensation, HCC, or liver transplantation (LT), were prospectively followed. Participants with known human immunodeficiency virus (HIV), hepatitis C virus, or hepatitis D virus (HDV) coinfection were excluded. During follow-up, treatment could be initiated per standard of care. Clinical outcomes included: incident cirrhosis, decompensation, HCC, OLT, and HBV-related death. Among 1,418 participants analyzed, 51.5% were women, median age was 41.1 years, 75% were Asian, 10% White, 13% Black, 24% HBeAg(+), and 1.5% cirrhosis at baseline. During the study, 274 started treatment, 83 had an alanine aminotransferase flare, 118 of 330 initially HBeAg(+) became HBeAg(-), and 90 of 1,329 became HBsAg(-). After 6,641 person-years follow-up, 8 participants (4 of 21 with baseline cirrhosis) had 12 clinical outcomes (2 decompensation, 5 HCC, 2 OLT, and 3 HBV-related deaths) and 19 of 1,397 had incident cirrhosis. Twenty-one of 26 participants had first outcome before treatment, none had become HBsAg(-), whereas 5/9 HBeAg(+) had become HBeAg(-) at time of first outcome. Cumulative percentage of clinical outcomes was 16% at year 4 in participants with baseline cirrhosis and 2% (including incident cirrhosis) at year 7 in those without. CONCLUSIONS Incidence of adverse outcomes was low in this closely monitored, large cohort of North American adults with predominantly inactive, chronic HBV without cirrhosis. Our data highlight the benefits of HBsAg loss and the importance of early diagnosis and treatment to prevent cirrhosis and other complications of chronic HBV infection.
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Affiliation(s)
- Anna S. Lok
- Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI, USA
| | - Robert Perrillo
- Hepatology Division, Baylor Scott and White Medical Center, Dallas, TX
| | | | - Michael W. Fried
- UNC Liver Center, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Steven H. Belle
- Epidemiology and Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA
| | | | - Mandana Khalili
- Department of Medicine, Division of Gastroenterology and Hepatology, University of California San Francisco, San Francisco, CA
| | - Robert J. Fontana
- Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, MI, USA
| | - Richard K. Sterling
- Division of Gastroenterology, Hepatology, and Nutrition, Virginia Commonwealth University, Richmond, VA
| | - Norah Terrault
- Division of Gastrointestinal and Liver Diseases, Keck Medicine of University of Southern California, Los Angeles, CA
| | - Jordan J. Feld
- Toronto Centre for Liver Disease, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Adrian M. Di Bisceglie
- Department of Internal Medicine, Saint Louis University School of Medicine, St. Louis, MO
| | - Daryl T.Y. Lau
- Division of Gastroenterology and Hepatology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Mohamed Hassan
- Division of Gastroenterology, Hepatology and Nutrition, University of Minnesota, Minneapolois, MN
| | - Harry L.A. Janssen
- Toronto Centre for Liver Disease, University of Toronto, Toronto, ON, Canada
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13
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Lisker-Melman M, Khalili M, Belle SH, Terrault NA, Lin HHS, Smith CI, Chung RT, Tsai N, Bzowej NH, Tran TT, Schwarzenberg SJ. Maternal knowledge of the risk of vertical transmission and offspring acquisition of hepatitis B. Ann Hepatol 2020; 19:388-395. [PMID: 32507734 PMCID: PMC7738313 DOI: 10.1016/j.aohep.2020.04.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 01/15/2020] [Revised: 04/13/2020] [Accepted: 04/16/2020] [Indexed: 02/04/2023]
Abstract
INTRODUCTION AND OBJECTIVES Universal vaccination at birth and in infancy is key to the elimination of chronic hepatitis B infection. We aimed to assess hepatitis B immune-prophylaxis and perinatal transmission knowledge, in a large and ethnically diverse cohort of previously pregnant North American women, chronically infected with hepatitis B. MATERIALS AND METHODS The Hepatitis B Research Network (HBRN) is comprised of 28 Clinical Centers in the United States and Canada. Female cohort participants were administered a questionnaire to assess: (1) their assertion of knowledge regarding HBV prophylaxis at birth, testing, and diagnosis of hepatitis B in their children, and (2) the percentage of affirmative to negative responses for each of the HBV-related interventions her child may have received. The relationship between asserted knowledge, actions taken and maternal demographics were assessed. RESULTS A total of 351 mothers with 627 children born in or after 1992 were included. Median age at enrollment was 39.8 years. Mothers were mostly foreign-born with the largest percentage from Asia (73.4%) and Africa (11.7%). Of the 627 children, 94.5% had mothers who asserted that they knew whether their child had received HBIG or HBV vaccine at birth, for 88.8% of the children, their mothers indicated that they knew if their child was tested for HBV and for 84.5% of children, their mothers knew if the child was diagnosed with HBV infection. Among children whose mothers asserted knowledge of their HBV management, 95.3% were reported to have received HBIG or HBV vaccine, 83.4% of children were said to have been tested for HBV, and 4.8% of children were said to have been diagnosed with HBV. Younger maternal age was the only factor significantly associated with higher percentage of children for whom mothers reported knowledge of testing (p=0.02) or diagnosis of HBV (p=0.02). CONCLUSIONS While high percentages of North American children had mothers asserting knowledge of HBV prophylaxis and testing, knowledge gaps remain, with mothers of 5.5-15.5% of children lacking knowledge of key components of the HBV prevention and diagnosis in the perinatal setting. Targeted education of HBsAg-positive mothers may aid in closing this gap and reducing vertical transmission.
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Affiliation(s)
| | - Mandana Khalili
- University of California San Francisco, San Francisco, CA, United States
| | | | - Norah A Terrault
- Keck Medicine at University of Southern California, Los Angeles, CA, United States
| | | | - Coleman I Smith
- Georgetown University Hospital, Washington, DC, United States
| | | | - Naoky Tsai
- Queens Medical Center, Honolulu, HI, United States
| | | | - Tram T Tran
- Cedar Sinai Medical Center, Los Angeles, CA, United States
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14
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Brouwer WP, Zhao Q, Hansen BE, Lau D, Khalili M, Terrault NA, Di Bisceglie AM, Perrillo RP, Fried MW, Wong D, Feld JJ, Belle SH, Janssen HLA. HBV Genotype-Specific Levels of Hepatitis B Surface Antigen Improve HBV Phenotype Definition. Clin Gastroenterol Hepatol 2020; 18:259-261. [PMID: 30630104 PMCID: PMC6612468 DOI: 10.1016/j.cgh.2018.12.039] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 12/27/2018] [Accepted: 12/27/2018] [Indexed: 02/07/2023]
Abstract
Controversies exist regarding the classification of the different clinical phases of chronic hepatitis B (CHB) because hepatitis B virus (HBV) DNA and alanine aminotransferase levels fluctuate over time.1,2 To improve the distinction of clinical phases and the associated spectrum of clinical outcome,3,4 hepatitis B surface antigen (HBsAg) levels may be of help.5-7 We hypothesize that HBV genotype specific HBsAg levels are needed for the identification of different clinical HBV disease phases.7.
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Affiliation(s)
- Willem P Brouwer
- Toronto Centre for Liver Disease, Toronto General Hospital, Toronto, Canada; Department of Gastroenterology and Hepatology, Erasmus University Medical Centre, Rotterdam, the Netherlands
| | - Qian Zhao
- Epidemiology Data Center, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Bettina E Hansen
- Department of Gastroenterology and Hepatology, Erasmus University Medical Centre, Rotterdam, the Netherlands; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Canada
| | - Daryl Lau
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Mandana Khalili
- Department of Gastroenterology and Hepatology, University of California, San Francisco, San Francisco, California
| | - Norah A Terrault
- Department of Gastroenterology and Hepatology, University of California, San Francisco, San Francisco, California
| | | | - Robert P Perrillo
- Hepatology Division, Baylor University Medical Center, Dallas, Texas
| | - Michael W Fried
- Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - David Wong
- Toronto Centre for Liver Disease, Toronto General Hospital, Toronto, Canada
| | - Jordan J Feld
- Toronto Centre for Liver Disease, Toronto General Hospital, Toronto, Canada
| | - Steven H Belle
- Epidemiology Data Center, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Harry L A Janssen
- Toronto Centre for Liver Disease, Toronto General Hospital, Toronto, Canada; Department of Gastroenterology and Hepatology, Erasmus University Medical Centre, Rotterdam, the Netherlands.
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15
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Brahmania M, Lombardero M, Hansen BE, Terrault NA, Lok AS, Perrillo RP, Belle SH, Di Bisceglie AM, Feld JJ, Lee WM, Fried MW, Janssen HLA. Association Between Severe Serum Alanine Aminotransferase Flares and Hepatitis B e Antigen Seroconversion and HBV DNA Decrease in Untreated Patients With Chronic HBV Infection. Clin Gastroenterol Hepatol 2019; 17:2541-2551.e2. [PMID: 30743006 PMCID: PMC6905460 DOI: 10.1016/j.cgh.2019.02.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [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: 10/18/2018] [Revised: 01/18/2019] [Accepted: 02/05/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS The incidence and outcomes of alanine aminotransferase (ALT) flares during the natural history of chronic HBV infection has not been determined in a large, racially heterogeneous group of patients in North America. METHODS We collected data from the Hepatitis B Research Network-an observational cohort study of untreated adults with chronic HBV infection enrolled at 21 sites in the United States and Canada. Clinical and laboratory data were collected from 1587 participants (49.9% male, 73.7% Asian, 35.2% genotype B infection, mean age of 42.6 years) at enrollment, at weeks 12 and 24, and every 24 weeks thereafter for a planned 5 years of follow up (from January 2011 through May 2016). Participants were excluded if they had a history of hepatic decompensation, hepatocellular carcinoma, solid organ or bone marrow transplantation, chronic immune suppression, or antiviral therapy within 6 months before enrollment. Levels of ALT were measured in serum samples and flares were defined as at least 10 times the upper limit of normal (300 U/L in males and 200 U/L in females). RESULTS ALT flares occurred in 102 participants (6%), with 31 flares (30%) occurring at baseline. The 4-year cumulative incidence of ALT flares was 5.7%. The median peak level of ALT was 450 U/L (25th-75th percentile, 330 U/L to 747 U/L) with a maximum of 2578 U/L. In multivariable analysis, factors associated with the occurrence of an ALT flares were: male sex (odds ratio [OR], 3.02; P=.0007), higher baseline HBV DNA values (OR per log10, 1.41; P<.0001), at risk alcohol use (OR, 2.27 vs none or moderate; P=.02), and higher FIB-4 values (OR, 1.85 per log2; P<.0001). Older age was associated with lower odds of an ALT flare (OR, 0.63 per 10 years; P=.004). Rate of decrease in level of HBV DNA by 1 log10 or more (59 vs 23 per 100 person-years for HB e antigen (HBeAg)-positive vs HBeAg-negative patients; P=.003) and HBeAg loss (47 vs 15 per 100 person-years; P=.002) were higher in patients with an ALT flare than in patients without, but the rate of HBsAg loss was similar (4 vs 2 per 100 person-years; P=.26). No hepatic decompensation, liver transplants, or deaths were observed in participants with ALT flares. CONCLUSION In a large racially heterogeneous cohort of adults with chronic HBV infection, the cumulative incidence of severe ALT flares was low and associated with greater decreases in HBV DNA and loss of HBeAg, but not with loss of HBsAg.
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Affiliation(s)
- Mayur Brahmania
- Division of Gastroenterology, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Manuel Lombardero
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Bettina E. Hansen
- Division of Gastroenterology, Toronto General Hospital, University Health Network, Toronto, Canada,IHPME, University of Toronto, Toronto, Canada
| | - Norah A. Terrault
- Division of Gastroenterology, University of California-San Francisco, San Francisco, California
| | - Anna S. Lok
- Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, Michigan
| | - Robert P. Perrillo
- Division of Gastroenterology, Baylor University Medical Center, Dallas, Texas
| | - Steven H. Belle
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | | | - Jordan J. Feld
- Division of Gastroenterology, Toronto General Hospital, University Health Network, Toronto, Canada
| | - William M. Lee
- Division of Digestive and Liver Diseases, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Michael W. Fried
- Division of Gastroenterology and Hepatology, University of North Carolina, Chapel Hill, North Carolina
| | - Harry L. A. Janssen
- Division of Gastroenterology, Toronto General Hospital, University Health Network, Toronto, Canada
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16
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Navarro VJ, Belle SH, D'Amato M, Afdhal N, Brunt EM, Fried MW, Rajender Reddy K, Wahed AS, Harrison S. Correction: Silymarin in non-cirrhotics with non-alcoholic steatohepatitis: A randomized, double-blind, placebo controlled trial. PLoS One 2019; 14:e0223915. [PMID: 31600349 PMCID: PMC6786547 DOI: 10.1371/journal.pone.0223915] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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17
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Ahmed B, King WC, Gourash W, Hinerman A, Belle SH, Pomp A, Pories WJ, Courcoulas AP. Proximal Roux-en-Y gastric bypass: Addressing the myth of limb length. Surgery 2019; 166:445-455. [PMID: 31378475 PMCID: PMC6778033 DOI: 10.1016/j.surg.2019.05.046] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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: 02/16/2019] [Revised: 04/11/2019] [Accepted: 05/09/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Some studies suggest that changes in weight or metabolic outcomes are affected by the lengths of the gastrointestinal limbs in the Roux-en-Y gastric bypass. METHODS Participants (N = 1,770) underwent primary Roux-en-Y gastric bypass and were followed ≤7 years in the Longitudinal Assessment of Bariatric Surgery-2, a multicenter US cohort study. Alimentary limb and biliopancreatic limb lengths were measured according to research protocol; common channel was measured in a subsample (N = 547). Aimentary limb, biliopancreatic limb, and common channel ratio to total small bowel length were calculated. RESULTS Median presurgery body mass index was 46 (25th-75th percentile: 43-51) kg/m2. Medians (25th-75th percentiles) for alimentary limb length were 125 cm (100-150), for biliopancreatic limb length were 50 cm (50-60), and common channel length were 410 cm (322-520). Statistics for ratios to the small bowel length were 0.23 (0.18-0.27) for alimentary limb, 0.09 (0.07-0.10) for biliopancreatic limb, and 0.69 (0.63-0.73) for common length. There were no significant associations between alimentary limb, biliopancreatic limb, common channel, alimentary limb ratio, biliopancreatic limb ratio or common channel ratio, and either weight loss or improvement in cardiometabolic outcomes. CONCLUSION The common channel length in Roux-en-Y gastric bypass is highly variable between individuals. None of the limb lengths in this study, nor alimentary limb, biliopancreatic limb, or common channel ratios, seem to be related to weight loss or metabolic improvements >7 years.
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Affiliation(s)
- Bestoun Ahmed
- Department of Surgery, Division of Minimally Invasive Bariatric and General Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Wendy C King
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA
| | - William Gourash
- Department of Surgery, Division of Minimally Invasive Bariatric and General Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA.
| | - Amanda Hinerman
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA
| | - Steven H Belle
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA; Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA
| | - Alfons Pomp
- Department of Surgery, Division of GI Metabolic and Bariatric Surgery, Weill Cornell Medicine, New York, NY
| | - Walter J Pories
- Department of Surgery, Brody School of Medicine, East Carolina University, Greenville, NC
| | - Anita P Courcoulas
- Department of Surgery, Division of Minimally Invasive Bariatric and General Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA
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Courcoulas AP, King WC, Belle SH, Berk P, Flum DR, Garcia L, Gourash W, Horlick M, Mitchell JE, Pomp A, Pories WJ, Purnell JQ, Singh A, Spaniolas K, Thirlby R, Wolfe BM, Yanovski SZ. Seven-Year Weight Trajectories and Health Outcomes in the Longitudinal Assessment of Bariatric Surgery (LABS) Study. JAMA Surg 2019; 153:427-434. [PMID: 29214306 DOI: 10.1001/jamasurg.2017.5025] [Citation(s) in RCA: 402] [Impact Index Per Article: 80.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Importance More information is needed about the durability of weight loss and health improvements after bariatric surgical procedures. Objective To examine long-term weight change and health status following Roux-en-Y gastric bypass (RYGB) and laparoscopic adjustable gastric banding (LAGB). Design, Setting, and Participants The Longitudinal Assessment of Bariatric Surgery (LABS) study is a multicenter observational cohort study at 10 US hospitals in 6 geographically diverse clinical centers. Adults undergoing bariatric surgical procedures as part of clinical care between 2006 and 2009 were recruited and followed up until January 31, 2015. Participants completed presurgery, 6-month, and annual research assessments for up to 7 years. Main Outcome and Measures Percentage of weight change from baseline, diabetes, dyslipidemia, and hypertension, determined by physical measures, laboratory testing, and medication use. Results Of 2348 participants, 1738 underwent RYGB (74%) and 610 underwent LAGB (26%). For RYBG, the median age was 45 years (range, 19-75 years), the median body mass index (calculated as weight in kilograms divided by height in meters squared) was 47 (range, 34-81), 1389 participants (80%) were women, and 257 participants (15%) were nonwhite. For LAGB, the median age was 48 years (range, 18-78), the body mass index was 44 (range, 33-87), 465 participants (76%) were women, and 63 participants (10%) were nonwhite. Follow-up weights were obtained in 1300 of 1569 (83%) eligible for a year-7 visit. Seven years following RYGB, mean weight loss was 38.2 kg (95% CI, 36.9-39.5), or 28.4% (95% CI, 27.6-29.2) of baseline weight; between years 3 and 7 mean weight regain was 3.9% (95% CI, 3.4-4.4) of baseline weight. Seven years after LAGB, mean weight loss was 18.8 kg (95% CI, 16.3-21.3) or 14.9% (95% CI, 13.1-16.7), with 1.4% (95% CI, 0.4-2.4) regain. Six distinct weight change trajectory patterns for RYGB and 7 for LAGB were identified. Most participants followed trajectories in which weight regain from 3 to 7 years was small relative to year-3 weight loss, but patterns were variable. Compared with baseline, dyslipidemia prevalence was lower 7 years following both procedures; diabetes and hypertension prevalence were lower following RYGB only. Among those with diabetes at baseline (488 of 1723 with RYGB [28%]; 175 of 604 with LAGB [29%]), the proportion in remission at 1, 3, 5, and 7 years were 71.2% (95% CI, 67.0-75.4), 69.4% (95% CI, 65.0-73.8), 64.6% (95% CI, 60.0-69.2), and 60.2% (95% CI, 54.7-65.6), respectively, for RYGB and 30.7% (95% CI, 22.8-38.7), 29.3% (95% CI, 21.6-37.1), 29.2% (95% CI, 21.0-37.4), and 20.3% (95% CI, 9.7-30.9) for LAGB. The incidence of diabetes at all follow-up assessments was less than 1.5% for RYGB. Bariatric reoperations occurred in 14 RYGB and 160 LAGB participants. Conclusions and Relevance Following bariatric surgery, different weight loss patterns were observed, but most participants maintained much of their weight loss with variable fluctuations over the long term. There was some decline in diabetes remission over time, but the incidence of new cases is low following RYGB. Trial Registration clinicaltrials.gov Identifier: NCT00465829.
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Affiliation(s)
- Anita P Courcoulas
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Wendy C King
- Department of Epidemiology, University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Steven H Belle
- Department of Epidemiology, Biostatistics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Paul Berk
- Columbia University, New York, New York
| | - David R Flum
- Department of Surgery, University of Washington, Seattle
| | - Luis Garcia
- University of North Dakota, Neuropsychiatric Research Institute, Grand Forks
| | - William Gourash
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Mary Horlick
- National Institute of Diabetes and Digestive and Kidney Diseases, New York, New York
| | | | - Alfons Pomp
- Weill Cornell Medical College, New York, New York
| | - Walter J Pories
- Department of Surgery, Brody School of Medicine, Greenville, North Carolina
| | | | - Ashima Singh
- Department of Epidemiology, University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania
| | | | | | - Bruce M Wolfe
- Department of Surgery, Oregon Health and Science University, Portland
| | - Susan Z Yanovski
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland
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Navarro VJ, Belle SH, D’Amato M, Adfhal N, Brunt EM, Fried MW, Reddy KR, Wahed AS, Harrison S. Silymarin in non-cirrhotics with non-alcoholic steatohepatitis: A randomized, double-blind, placebo controlled trial. PLoS One 2019; 14:e0221683. [PMID: 31536511 PMCID: PMC6752871 DOI: 10.1371/journal.pone.0221683] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [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: 08/20/2018] [Accepted: 08/09/2019] [Indexed: 12/18/2022] Open
Abstract
The botanical product silymarin, an extract of milk thistle, is commonly used by patients to treat chronic liver disease and may be a treatment for NASH due to its antioxidant properties. We aimed to assess the safety and efficacy of higher than customary doses of silymarin in non-cirrhotic patients with NASH. This exploratory randomized double-blind placebo controlled multicenter Phase II trial tested a proprietary standardized silymarin preparation (Legalon®, Rottapharm|Madaus, Mylan) and was conducted at 5 medical centers in the United States. Eligible adult patients had liver biopsy within 12 months showing NASH without cirrhosis with NAFLD Activity Score (NAS) ≥4 per site pathologist’s assessment. Participants were randomized to Legalon® 420 mg, 700 mg, or placebo t.i.d. for 48 weeks. The primary endpoint was histological improvement ≥2 points in NAS. Of 116 patients screened, 78 were randomized. There were no significant differences in adverse events among the treatment groups. After 48–50 weeks, 4/27 (15%) in the 700 mg dose, 5/26 (19%) participants randomized to 420 mg, and 3/25 (12%) of placebo recipients reached the primary endpoint (p = 0.79) among all randomized participants, indicating no benefit from silymarin in the intention to treat analysis Review by a central pathologist demonstrated that a substantial number of participants (49, 63%) did not meet histological entry criteria and that fibrosis stage improved most in the placebo treated group, although not significantly different from other groups. Silymarin (Legalon®) at the higher than customary doses tested in this study is safe and well tolerated. The effect of silymarin in patients with NASH remains inconclusive due to the substantial number of patients who entered the study but did not meet entry histological criteria, the lack of a statistically significant improvement in NAS of silymarin treated patients, and the unanticipated effect of placebo on fibrosis indicate the need for additional clinical trials. Trial Registration: clinicaltrials.gov, Identifier: NCT00680407.
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Affiliation(s)
- Victor J. Navarro
- Department of Digestive Disease and Transplantation, Einstein Medical Center and Sidney Kimmel Medical College, Philadlephia, Pennsylvania, United States of America
- * E-mail:
| | - Steven H. Belle
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania, United States of America
| | | | - Nezam Adfhal
- Division of Hepatology, Department of Medicine, Beth-Israel Deaconess Medical Center, Boston, Massachusetts, United States of America
| | - Elizabeth M. Brunt
- Department of Pathology and Immunology, Washington University School of Medicine, CB 8118, St. Louis, Missouri, United States of America
| | - Michael W. Fried
- Department of Medicine, Division of Gastroenterology and Hepatology, Liver Center, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - K. Rajender Reddy
- Department of Medicine, Division of Gastroenterology University of Pennsylvania, Philadelphia, Pennsylvania, United States of America
| | - Abdus S. Wahed
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania, United States of America
| | - Stephen Harrison
- Department of Medicine, Division of Gastroenterology, Brooke Army Medical Center, Fort Sam Houston, Texas, United States of America
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White GE, Courcoulas AP, King WC, Flum DR, Yanovski SZ, Pomp A, Wolfe BM, Spaniolas K, Pories W, Belle SH. Mortality after bariatric surgery: findings from a 7-year multicenter cohort study. Surg Obes Relat Dis 2019; 15:1755-1765. [PMID: 31564635 DOI: 10.1016/j.soard.2019.08.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 04/18/2019] [Revised: 08/12/2019] [Accepted: 08/13/2019] [Indexed: 12/30/2022]
Abstract
BACKGROUND Patients having bariatric surgery have lower mortality compared with those with similar body mass index who do not undergo surgery. It is unclear whether mortality post-bariatric surgery is similar to the general population. The benefit of bariatric surgery would be highlighted should people previously at high risk for premature death have comparable, or better, mortality as the general population. OBJECTIVE To compare mortality after bariatric surgery to the general U.S. population of the same age, sex, and race. SETTING The Longitudinal Assessment of Bariatric Surgery-2 (LABS-2) prospective cohort of 2458 adults who underwent bariatric surgery at 10 U.S. hospitals between 2006 and 2009. METHODS Deaths were identified via LABS-2 follow-up and the National Death Index. Standardized mortality ratios (SMR) of post-bariatric surgery mortality observed in LABS-2 versus age-, sex-, race-, and year-adjusted expected mortality in the general U.S. population were calculated and compared with 1, which results when the number of observed and expected deaths are equal. RESULTS LABS-2 median follow-up was 6.6 (interquartile range: 5.9-7.0) years postsurgery. Seventy-six deaths were observed over 15,616 person-years (PY) of observation (4.9 deaths/1000 PY). The rate expected in the general U.S. population with the same age, sex, race, and year distribution was 4.8 deaths per 1000 PY (SMR = 1.02, 95% confidence interval [CI]: .80-1.27). There were no significant differences between observed and expected mortality by surgical procedure. Compared with expected mortality in the general U.S. population, people 35-44 years old at time of surgery had significantly more deaths (SMR = 2.06, 95% CI: 1.22-3.25), while people at least 55 years of age had significantly fewer (SMR = .63, 95% CI: .42-.92). Significantly more deaths than expected occurred in the perioperative period and 5-7 years after surgery. CONCLUSIONS Mortality within 7 years of bariatric surgery is comparable to the general U.S. population, which is likely to have better survival than people with severe obesity. However, more deaths than expected were identified 5-7 years after surgery.
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Affiliation(s)
- Gretchen E White
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania.
| | - Anita P Courcoulas
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Wendy C King
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - David R Flum
- Department of Surgery, University of Washington, Seattle, Washington
| | - Susan Z Yanovski
- Division of Digestive Diseases and Nutrition, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland
| | - Alfons Pomp
- Weill Cornell Medical College, New York, New York
| | - Bruce M Wolfe
- Department of Surgery, Oregon Health and Science University, Portland, Oregon
| | | | - Walter Pories
- Department of Surgery, East Carolina University, Greenville, North Carolina
| | - Steven H Belle
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania; Department of Biostatistics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
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Di Bisceglie AM, King WC, Lisker-Melman M, Khalili M, Belle SH, Feld JJ, Ghany MG, Janssen HL, Lau D, Lee WM, Ling SC, Cooper S, Rosenthal P, Schwarz KB, Sterling RK, Teckman JH, Terrault N. Age, race and viral genotype are associated with the prevalence of hepatitis B e antigen in children and adults with chronic hepatitis B. J Viral Hepat 2019; 26:856-865. [PMID: 30974509 PMCID: PMC6592737 DOI: 10.1111/jvh.13104] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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: 01/28/2019] [Revised: 03/07/2019] [Accepted: 03/15/2019] [Indexed: 12/23/2022]
Abstract
Hepatitis B e antigen (HBeAg) is an important serological marker of hepatitis B virus (HBV) infection and is associated with higher levels of viraemia, increased risk of infectivity to others and increased risk of hepatocellular carcinoma. We analysed HBeAg status in a large cohort of adults and children enrolled in Cohort Studies of the Hepatitis B Research Network, long-term natural history studies of chronic HBV infection. A cross-sectional analysis examined factors associated with HBeAg positivity, including demographic and virologic data, across the age spectrum. Among 2241 enrolled participants who met criteria for this analysis, 825 (37%) were seropositive for HBeAg. The prevalence of HBeAg was lower in those with older age, ranging from 85% among those up to 10 years of age to only 12% among those older than 50 years. In addition to age, both race and HBV genotype were independently associated with HBeAg positivity. There was a significant interaction between age and race; the prevalence of HBeAg was significantly higher among Asians > 10-30 years old vs Whites or Blacks who were >10 to 30 years old and those infected with HBV genotype C. Conversely, the presence of the basal core promoter and precore variants was associated with significantly lower prevalence of HBeAg, even when adjusted for age, race and genotype. These data will provide a better understanding of factors associated with seropositivity for HBeAg and may lead to better strategies for preventing HBV infection and broader indications for antiviral therapy.
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Affiliation(s)
| | - Wendy C. King
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh
| | | | - Mandana Khalili
- University of California at San Francisco, Toronto General Hospital, University of Toronto
| | - Steven H. Belle
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh
| | - Jordan J. Feld
- Toronto Centre for Liver Disease, Toronto General Hospital, University of Toronto
| | - Marc G. Ghany
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases
| | - Harry L.A. Janssen
- Toronto Centre for Liver Disease, Toronto General Hospital, University of Toronto
| | - Daryl Lau
- Beth Israel Deaconess Medical Center
| | | | - Simon C. Ling
- Toronto Centre for Liver Disease, Toronto General Hospital, University of Toronto
| | | | - Philip Rosenthal
- University of California at San Francisco, Toronto General Hospital, University of Toronto
| | | | | | | | - Norah Terrault
- University of California at San Francisco, Toronto General Hospital, University of Toronto
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22
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Tate DF, Lytle L, Polzien K, Diamond M, Leonard KR, Jakicic JM, Johnson KC, Olson CM, Patrick K, Svetkey LP, Wing RR, Lin PH, Coday M, Laska MN, Merchant G, Czaja SJ, Schulz R, Belle SH. Deconstructing Weight Management Interventions for Young Adults: Looking Inside the Black Box of the EARLY Consortium Trials. Obesity (Silver Spring) 2019; 27:1085-1098. [PMID: 31135102 PMCID: PMC6749832 DOI: 10.1002/oby.22506] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 10/10/2018] [Accepted: 03/10/2019] [Indexed: 11/09/2022]
Abstract
OBJECTIVE The goal of the present study was to deconstruct the 17 treatment arms used in the Early Adult Reduction of weight through LifestYle (EARLY) weight management trials. METHODS Intervention materials were coded to reflect behavioral domains and behavior change techniques (BCTs) within those domains planned for each treatment arm. The analytical hierarchy process was employed to determine an emphasis profile of domains in each intervention. RESULTS The intervention arms used BCTs from all of the 16 domains, with an average of 29.3 BCTs per intervention arm. All 12 of the interventions included BCTs from the six domains of Goals and Planning, Feedback and Monitoring, Social Support, Shaping Knowledge, Natural Consequences, and Comparison of Outcomes; 11 of the 12 interventions shared 15 BCTs in common across those six domains. CONCLUSIONS Weight management interventions are complex. The shared set of BCTs used in the EARLY trials may represent a core intervention that could be studied to determine the required emphases of BCTs and whether additional BCTs add to or detract from efficacy. Deconstructing interventions will aid in reproducibility and understanding of active ingredients.
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Affiliation(s)
- Deborah F. Tate
- Departments of Health Behavior and Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Leslie Lytle
- Departments of Health Behavior and Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Kristen Polzien
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Molly Diamond
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Kelsey R. Leonard
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - John M. Jakicic
- Physical Activity and Weight Management Research Center, Department of Health and Physical Activity, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Karen C. Johnson
- Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | | | - Kevin Patrick
- Department of Family Medicine and Public Health, University of California San Diego, La Jolla CA, USA
| | - Laura P. Svetkey
- Department of Medicine, Duke University Medical Center, Durham, NC, USA
| | - Rena R. Wing
- The Miriam Hospital, Alpert Medical School, Brown University, Providence, Rhode Island, USA
| | - Pao-Hwa Lin
- Department of Medicine, Duke University Medical Center, Durham, NC, USA
| | - Mathilda Coday
- Department of Preventive Medicine, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Melissa N. Laska
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA
| | - Gina Merchant
- Department of Family Medicine and Public Health, University of California San Diego, La Jolla CA, USA
| | - Sara J. Czaja
- Department of Psychiatry and Behavioral Sciences, University of Miami, Miami, FL, USA
| | - Richard Schulz
- Department of Psychology and University Center for Social and Urban Research, University of Pittsburgh, Pittsburgh, PA, USA
| | - Steven H. Belle
- Graduate School of Public Health, Epidemiology & Biostatistics, University of Pittsburgh, Pittsburgh, PA, USA
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Rosenthal P, Ling SC, Belle SH, Murray KF, Rodriguez-Baez N, Schwarzenberg SJ, Teckman J, Lin HHS, Schwarz KB. Combination of Entecavir/Peginterferon Alfa-2a in Children With Hepatitis B e Antigen-Positive Immune Tolerant Chronic Hepatitis B Virus Infection. Hepatology 2019; 69:2326-2337. [PMID: 30318613 PMCID: PMC6465180 DOI: 10.1002/hep.30312] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [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: 06/21/2018] [Accepted: 10/10/2018] [Indexed: 12/17/2022]
Abstract
The optimal management strategy for children with immune-tolerant chronic hepatitis B virus (HBV) infection remains unknown. The purpose of this clinical trial was to determine the safety and efficacy of therapy with entecavir and peginterferon in a group of children in the immune-tolerant phase of HBV infection. Children with immune-tolerant features of chronic hepatitis B (CHB) received entecavir once-daily in a dose of 0.015 mg/kg (0.5 mg maximum) for 48 weeks; peginterferon alfa-2a (180 µg/1.73m2 subcutaneously) once-weekly was added at the end of week 8 and continued until week 48. The primary endpoint was lack of detectable hepatitis B e antigen (HBeAg) with HBV DNA levels ≤1,000 IU/mL 48 weeks after stopping therapy. Sixty children (75% female), median age 10.9 (range, 3.4-17.9) years, were enrolled. All were positive for hepatitis B surface antigen (HBsAg) and HBeAg and had high levels of HBV DNA with normal or minimally elevated levels of alanine aminotransferase (ALT). Fifty-five children completed the entire 48-week course of therapy. At 48 weeks after treatment ended (week 96), 2 children (3%) achieved the primary endpoint and were also HBsAg negative and anti-hepatitis B surface antigen antibody (anti-HBs) positive. One child was HBeAg positive but HBsAg negative at week 60; another was HBeAg negative but HBsAg positive at week 72, which were their last clinic visits. In the remaining children, serum ALT and HBV DNA levels at week 96 were similar to baseline. Thirty-seven children experienced adverse events (AEs), and 1 had a serious AE (SAE). Conclusion: The combination of entecavir and peginterferon for up to 48 weeks rarely led to loss of HBeAg with sustained suppression of HBV DNA levels in children in the immune-tolerant phase of HBV infection, and treatment was associated with frequent AEs.
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Affiliation(s)
- Philip Rosenthal
- Pediatrics, University of California, San Francisco, San Francisco, CA, United States
| | - Simon C. Ling
- The Hospital for Sick Children, and Department of Pediatrics, University of Toronto, Toronto, ON, Canada
| | - Steven H. Belle
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Karen F. Murray
- Pediatrics, University of Washington School of Medicine and Seattle Children’s Hospital, Seattle, WA, United States
| | - Norberto Rodriguez-Baez
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Sarah J. Schwarzenberg
- Pediatrics, University of Minnesota Masonic Children’s Hospital, Minneapolis, MN, United States
| | - Jeffrey Teckman
- Pediatrics, Saint Louis University, Saint Louis, MO, United States
| | - Hsing-Hua S. Lin
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Kathleen B. Schwarz
- Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, United States
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Feld JJ, Terrault NA, Lin HHS, Belle SH, Chung RT, Tsai N, Khalili M, Perrillo R, Cooper SL, Ghany MG, Janssen HL, Lok AS. Entecavir and Peginterferon Alfa-2a in Adults With Hepatitis B e Antigen-Positive Immune-Tolerant Chronic Hepatitis B Virus Infection. Hepatology 2019; 69:2338-2348. [PMID: 30549279 PMCID: PMC6541521 DOI: 10.1002/hep.30417] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 06/25/2018] [Accepted: 12/06/2018] [Indexed: 12/23/2022]
Abstract
Monotherapy with interferon or nucleoside analog is generally not recommended during the immune-tolerant (IT) phase of chronic hepatitis B virus (HBV) infection. Recognition that high HBV DNA levels are associated with hepatocellular carcinoma has increased interest in treating HBV in the IT phase. Small pediatric studies reported efficacy with combination nucleoside analog and interferon therapy. The aim of this study was to evaluate the safety and efficacy of the combination of entecavir and peginterferon in adults in the IT phase of chronic HBV infection. Hepatitis B e antigen (HBeAg)-positive adults with HBV DNA > 107 IU/mL and alanine aminotransferase (ALT) ≤ 1.5 times the upper limit of normal (ULN) (male: ≤ 45, female: ≤ 30 U/L) received entecavir 0.5 mg daily for 8 weeks followed by the addition of peginterferon alfa-2a 180 µg/week to entecavir for an additional 40 weeks. The primary endpoint was HBeAg loss and HBV DNA ≤ 1,000 IU/mL 48 weeks after end of treatment (EOT). Among 28 participants from 11 sites, the median age was 37.2 (range: 22-61) years, 54% were male, and 96% were Asian. Nearly all were infected with genotype C (64%) or B (32%). Median baseline HBV DNA was 8.2 log10 IU/mL, and ALT was 0.9 times the ULN. Although one (4%) participant cleared HBeAg, none met the primary endpoint of both HBeAg loss AND HBV DNA ≤ 1,000 IU/mL 48 weeks post-EOT. ALT elevations > 5 times the ULN occurred in eight (29%) participants, and none were associated with icterus. Forty-eight weeks posttreatment, HBV DNA rebounded to baseline levels in all participants, including the participant who lost HBeAg, and ALT values returned to near baseline levels in all but four participants. Conclusion: A lead-in strategy of 8 weeks of entecavir followed by combination peginterferon and entecavir therapy for 40 weeks had limited efficacy in adults in the IT phase of chronic HBV infection and cannot be recommended.
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Affiliation(s)
| | | | - Hsing-Hua S. Lin
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA
| | - Steven H. Belle
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA
| | | | | | | | | | - Stewart L. Cooper
- San Francisco Center for Liver Disease, California Pacific Medical Centre, San Francisco CA
| | - Marc G. Ghany
- Liver Diseases Branch, National Institutes of Diabetes and Digestive and Kidney Diseases, National Institutes of Health
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25
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McGivern DR, Lin HHS, Wang J, Benzine T, Janssen HLA, Khalili M, Lisker-Melman M, Fontana RJ, Belle SH, Fried MW. Prevalence and Impact of Hepatitis E Virus Infection Among Persons With Chronic Hepatitis B Living in the US and Canada. Open Forum Infect Dis 2019; 6:ofz175. [PMID: 31139669 DOI: 10.1093/ofid/ofz175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 02/26/2019] [Accepted: 04/05/2019] [Indexed: 01/02/2023] Open
Abstract
Background Patients with chronic hepatitis B virus (HBV) may experience spontaneous biochemical flares of liver disease activity. This study aimed to determine (i) the prevalence of prior and possible acute hepatitis E virus (HEV) infection among persons with chronic HBV and (ii) whether HEV infection is associated with liver disease flares among persons with chronic HBV. Methods Serum from a random sample of 600 adults in the Hepatitis B Research Network Cohort Study was tested for HEV RNA and anti-HEV IgM and IgG. Logistic regression models were used to estimate crude and adjusted odds ratios of anti-HEV prevalence for participant characteristics. Results Anti-HEV IgG and IgM seroprevalence was 28.5% and 1.7%, respectively. No participants had detectable HEV RNA. Of the 10 anti-HEV IgM+ participants, only 1 had elevated serum ALT at seroconversion. The odds of anti-HEV seropositivity (IgG+ or IgM+) were higher in older participants, males, Asians, less educated people, and those born outside the United States and Canada. Conclusions Acute HEV infection is a rare cause of serum ALT flares among persons with chronic HBV. The high seroprevalence of anti-HEV IgG among the chronic HBV patients is strongly associated with various demographic factors in this largely Asian American cohort.
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Affiliation(s)
- David R McGivern
- Lineberger Comprehensive Cancer Center and Division of Infectious Diseases, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.,Center for Biologics Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
| | - Hsing-Hua S Lin
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Junyao Wang
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Tiffany Benzine
- Lineberger Comprehensive Cancer Center and Division of Infectious Diseases, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Harry L A Janssen
- Toronto Centre for Liver Disease, University Health Network, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Mandana Khalili
- Department of Medicine, University of California San Francisco, San Francisco, California
| | - Mauricio Lisker-Melman
- Division of Gastroenterology, Washington University School of Medicine, St. Louis, Missouri
| | - Robert J Fontana
- Division of Gastroenterology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Steven H Belle
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Michael W Fried
- UNC Liver Center, Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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Gordon KH, King WC, White GE, Belle SH, Courcoulas AP, Ebel FE, Engel SG, Flum DR, Hinojosa MW, Pomp A, Pories WJ, Spaniolas D, Wolfe BM, Yanovski SZ, Mitchell JE. A longitudinal examination of suicide-related thoughts and behaviors among bariatric surgery patients. Surg Obes Relat Dis 2018; 15:269-278. [PMID: 31010651 DOI: 10.1016/j.soard.2018.12.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 08/19/2018] [Revised: 11/19/2018] [Accepted: 12/02/2018] [Indexed: 01/09/2023]
Abstract
BACKGROUND Past research suggests self-harm/suicidality are more common among adults who have undergone bariatric surgery than the general population. OBJECTIVES To compare prevalence of self-harm/suicidal ideation over time and identify presurgery risk factors for postsurgery self-harm/suicidal ideation. SETTING The Longitudinal Assessment of Bariatric Surgery-2 is a cohort study with presurgery and annual postsurgery assessments conducted at 10 U.S. hospitals. METHODS Adults with severe obesity undergoing bariatric surgery between March 2006 and April 2009 (n = 2458). Five-year follow-up is reported. Self-reported history of suicidality assessed retrospectively via the Suicide Behavior Questionnaire-Revised (SBQ-R) and self-reported self-harm/suicidal ideation assessed prospectively via the Beck Depression Inventory-Version 1 (BDI-1). RESULTS The SBQ-R was completed by 1540 participants; 2217 completed the BDI-1 pre- and postsurgery. Over 75% of participants were female, with a median age of 46 years and body mass index of 45.9 kg/m2. Approximately one fourth of participants (395/1534) reported a presurgery history of suicidal thoughts or behavior (SBQ-R). The prevalence of self-harm/suicidal ideation (BDI-1) was 5.3% (95% confidence interval [CI], 3.7-6.8) presurgery and 3.8% (95% CI, 2.5-5.1) at year 1 postsurgery (P = .06). Prevalence increased over time postsurgery to 6.6% (95% CI, 4.6-8.6) at year 5 (P = .001) but was not significantly different than presurgery (P = .12). CONCLUSIONS A large cohort of adults with severe obesity who underwent bariatric surgery had a prevalence of self-harm/suicidal ideation that may have decreased in the first postoperative year but increased over time to presurgery levels, suggesting screening for self-harm/suicidality is warranted throughout long-term postoperative care. Several risk factors were identified that may help with enhanced monitoring.
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Affiliation(s)
- Kathryn H Gordon
- Neuropsychiatric Research Institute, Fargo, North Dakota; Department of Psychology, North Dakota State University, Fargo, North Dakota.
| | - Wendy C King
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Gretchen E White
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Steven H Belle
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Anita P Courcoulas
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | | | - Scott G Engel
- Neuropsychiatric Research Institute, Fargo, North Dakota
| | - Dave R Flum
- Department of Surgery, University of Washington, Seattle, Washington
| | | | | | - Walter J Pories
- Department of Surgery, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - Dino Spaniolas
- Department of Surgery, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - Bruce M Wolfe
- Department of Surgery, Oregon Health Sciences University, Portland, Oregon
| | - Susan Z Yanovski
- Office of Obesity Research, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland
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Squires JE, Rudnick DA, Hardison RM, Horslen S, Ng VL, Alonso EM, Belle SH, Squires RH. Liver Transplant Listing in Pediatric Acute Liver Failure: Practices and Participant Characteristics. Hepatology 2018; 68:2338-2347. [PMID: 30070372 PMCID: PMC6275095 DOI: 10.1002/hep.30116] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [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: 12/22/2017] [Accepted: 05/24/2018] [Indexed: 12/19/2022]
Abstract
Liver transplant (LT) decisions in pediatric acute liver failure (PALF) are complex. Three phases of the PALF registry, containing data on 1,144 participants over 15 years, were interrogated to characterize clinical features associated with listing status. A decrease in the cumulative incidence of listing (P < 0.005) and receiving (P < 0.05) LT occurred without an increase in the cumulative incidence of death (P = 0.67). Time to listing was constant and early (1 day; quartiles 1-3 = 0-2; P = 0.88). The most frequent reasons for not listing were "not sick enough" and "medically unsuitable." Participants listed for LT were more likely male, with coma grade scores >0; had higher international normalized ratio, bilirubin, lactate, and venous ammonia; and had lower peripheral lymphocytes and transaminase levels compared to those deemed "not sick enough." Participants listed versus those deemed "medically unsuitable" were older; had higher serum aminotransferase levels, bilirubin, platelets, and albumin; and had lower lactate, venous ammonia, and lymphocyte count. An indeterminate diagnosis was more prevalent in listed participants. Ventilator (23.8%) and vasopressor (9.2%) support occurred in a significant portion of listed participants but less frequently than in those who were not "medically suitable." Removal from the LT list was a rare event. Conclusion: The cumulative incidence of listing for and receiving LT decreased throughout the PALF study without an increase in the cumulative incidence of death. While all participants fulfilled entry criteria for PALF, significant differences were noted between participants listed for LT and those deemed "not sick enough" as well as those who were "medically unsuitable." Having an indeterminate diagnosis and a requirement for cardiopulmonary support appeared to influence decisions toward listing; optimizing listing decisions in PALF may reduce the frequency of LT without increasing the frequency of death.
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Affiliation(s)
- James E Squires
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Pittsburgh School of Medicine and Children’s Hospital of Pittsburgh of University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - David A Rudnick
- Pediatric Hepatology Departments of Pediatrics and Developmental Biology, Washington University School of Medicine, St. Louis, MO, United States
| | - Regina M Hardison
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Simon Horslen
- Pediatric Hepatology, Seattle Children’s Hospital, Seattle, WA, United States
| | - Vicky L Ng
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, University of Toronto, ON, Canada
| | - Estella M Alonso
- Pediatric Hepatology, Ann and Robert H Lurie Children’s Hospital, Chicago, IL, United States
| | - Steven H Belle
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States,Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Robert H Squires
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Pittsburgh School of Medicine and Children’s Hospital of Pittsburgh of University of Pittsburgh Medical Center, Pittsburgh, PA, United States
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Field AE, Inge TH, Belle SH, Johnson GS, Wahed AS, Pories W, Spaniolas K, Mitchell JE, Pomp A, Dakin GF, Wolfe B, Courcoulas AP. Association of Obesity Subtypes in the Longitudinal Assessment of Bariatric Surgery Study and 3-Year Postoperative Weight Change. Obesity (Silver Spring) 2018; 26:1931-1937. [PMID: 30421853 PMCID: PMC6249053 DOI: 10.1002/oby.22287] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 07/11/2018] [Accepted: 07/29/2018] [Indexed: 01/14/2023]
Abstract
OBJECTIVE The study objective was to empirically identify subgroups of patients with obesity and investigate their association with postoperative weight change. METHODS A longitudinal analysis of 2,458 adults in the Longitudinal Assessment of Bariatric Surgery (LABS) study was used. Baseline data were used to identify subgroups. The outcome was 3-year weight change after bariatric surgery. RESULTS We identified four classes (subtypes) of obesity, which could be characterized as diabetes with low rates of high-density lipoprotein (Class 1), disordered eating (Class 2), mixed (Class 3), and extreme obesity with early onset (Class 4). Approximately 98% of participants in Class 1 had diabetes compared with < 40% in the other classes. There were high rates of binge eating in Class 2, and more than 92% of those in this class reported eating when not hungry. Class 4 was characterized by a higher BMI at baseline. Adults in Class 4 lost an average of 25.0% (males) and 30.3% (females) of their baseline weight over 3 years. In contrast with participants in Class 1, those in Classes 2 and 3 had significantly larger 3-year weight losses than their peers in Class 4. CONCLUSIONS Obesity is a heterogeneous disease. Bariatric surgery may be most beneficial for adults with disordered eating.
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Affiliation(s)
- Alison E. Field
- Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island
| | - Thomas H. Inge
- Division of Pediatric Surgery, Cincinnati Children’s Hospital Medical Center, University of Cincinnati, Cincinnati, OH
| | - Steven H. Belle
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh
| | - Geoffrey S Johnson
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh
| | - Abdus S. Wahed
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh
| | - Walter Pories
- Departments of Surgery, Biochemistry and Kinesiology, Brody School of Medicine, East Carolina University, Greenville, NC
| | - Konstantinos Spaniolas
- Departments of Surgery, Biochemistry and Kinesiology, Brody School of Medicine, East Carolina University, Greenville, NC
| | | | - Alfons Pomp
- Weill Cornell Medical Center, New York, NY, USA
| | | | - Bruce Wolfe
- Oregon Health and Science University, Portland, OR
| | - Anita P. Courcoulas
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
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Narkewicz MR, Horslen S, Hardison RM, Shneider BL, Rodriguez-Baez N, Alonso EM, Ng VL, Leonis MA, Loomes KM, Rudnick DA, Rosenthal P, Romero R, Subbarao GC, Li R, Belle SH, Squires RH. A Learning Collaborative Approach Increases Specificity of Diagnosis of Acute Liver Failure in Pediatric Patients. Clin Gastroenterol Hepatol 2018; 16:1801-1810.e3. [PMID: 29723692 PMCID: PMC6197895 DOI: 10.1016/j.cgh.2018.04.050] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 04/11/2018] [Accepted: 04/20/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Many pediatric patients with acute liver failure (PALF) do not receive a specific diagnosis (such as herpes simplex virus or Wilson disease or fatty acid oxidation defects)-they are left with an indeterminate diagnosis and are more likely to undergo liver transplantation, which is contraindicated for some disorders. Strategies to facilitate complete diagnostic testing should increase identification of specific liver diseases and might reduce liver transplantation. We investigated whether performing recommended age-specific diagnostic tests (AS-DTs) at the time of hospital admission reduces the percentage PALFs with an indeterminate diagnosis. METHODS We performed a multinational observational cohort study of 658 PALF participants in the United States and Canada, enrolled at 10 medical centers, during 3 study phases from December 1999 through December 2014. A learning collaborative approach was used to implement AS-DT using an electronic medical record admission order set at hospital admission in phase 3 of the study. Data from 10 study sites participating in all 3 phases were compared before (phases 1 and 2) and after (phase 3) diagnostic test recommendations were inserted into electronic medical record order sets. RESULTS The percentage of subjects with an indeterminate diagnosis decreased significantly between phases 1-2 (48.0%) and phase 3 (to 30.8%) (P = .0003). The 21-day cumulative incidence rates for liver transplantation were significantly different among phase 1 (34.6%), phase 2 (31.9%), and phase 3 (20.2%) (P = .030). The 21-day cumulative incidence rates for death did not differ significantly among phase 1 (17.9%), phase 2 (11.9%), and phase 3 (11.3%) (P = .20). CONCLUSIONS In a multinational study of children with acute liver failure, we found that incorporating diagnostic test recommendations into electronic medical record order sets accessed at time of admission reduced the percentage with an indeterminate diagnosis that may have reduced liver transplants without increasing mortality. Widespread use of this approach could significantly enhance care of acute liver failure in children.
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Affiliation(s)
- Michael R Narkewicz
- Digestive Health Institute and Section of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, Colorado
| | - Simon Horslen
- Division of Gastroenterology and Hepatology, Seattle Children's Hospital and Department of Pediatrics, University of Washington School of Medicine, Seattle, Washington
| | - Regina M Hardison
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Benjamin L Shneider
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Norberto Rodriguez-Baez
- Department of Pediatrics, Division of Gastroenterology, University of Texas Southwestern, Dallas, Texas
| | - Estella M Alonso
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago Illinois
| | - Vicky L Ng
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Hospital for Sick Children, University of Toronto, Toronto, Canada
| | - Mike A Leonis
- Department of Pediatrics, Division of Gastroenterology, Hepatology, and Nutrition, University of Alabama Birmingham, Birmingham, Alabama
| | - Kathleen M Loomes
- Division of Gastroenterology, Hepatology, and Nutrition, The Children's Hospital of Philadelphia, Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - David A Rudnick
- Department of Pediatrics, Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri
| | - Philip Rosenthal
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, UCSF Benioff Children's Hospital, Department of Pediatrics and Surgery, University of California, San Francisco, San Francisco, California
| | - Rene Romero
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, Georgia
| | - Girish C Subbarao
- Department of Pediatrics, Division of Gastroenterology, Hepatology, and Nutrition, University of Indiana School of Medicine and Riley Children's Hospital, Indianapolis, Indiana
| | - Ruosha Li
- Department of Biostatistics and Data Science, the University of Texas Health Science Center at Houston, Houston, Texas
| | - Steven H Belle
- Department of Epidemiology, the Department of Biostatistics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Robert H Squires
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, University of Pittsburgh School of Medicine and Children's Hospital of Pittsburgh of University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.
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King WC, Hinerman AS, Belle SH, Wahed AS, Courcoulas AP. Comparison of the Performance of Common Measures of Weight Regain After Bariatric Surgery for Association With Clinical Outcomes. JAMA 2018; 320:1560-1569. [PMID: 30326125 PMCID: PMC6233795 DOI: 10.1001/jama.2018.14433] [Citation(s) in RCA: 183] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
IMPORTANCE Estimates of weight regain following bariatric surgery vary widely. OBJECTIVE To describe weight regain after reaching nadir weight following Roux-en-Y gastric bypass (RYGB) surgery and compare weight regain measures for association with outcomes. DESIGN, SETTING, AND PARTICIPANTS Prospective cohort study of 2458 adults who underwent bariatric surgery at 10 hospitals in 6 US cities between March 2006 and April 2009. Assessments were conducted within 30 days' presurgery, at 6 months' postsurgery, and then annually until January 2015. Of the 1703 participants who underwent RYGB surgery, 1406 (83%) were followed up for 5 years or longer and had 5 or more weight measurements (excluding those who died or underwent surgical reversal). EXPOSURES Weight regain assessed by 5 continuous measures (weight in kilograms, body mass index [BMI], percentage of presurgery weight, percentage of nadir weight, and percentage of maximum weight lost) and 8 dichotomous measures (per established thresholds) were compared in relation to clinical outcomes based on statistical significance, magnitude of association, and model fit. MAIN OUTCOMES AND MEASURES Progression of diabetes, hyperlipidemia, and hypertension and declines in physical and mental health-related quality of life and satisfaction with surgery. RESULTS Among the 1406 participants who underwent RYGB surgery, the median age was 47 years (25th-75th percentile, 38-55 years) and the median BMI was 46.3 (25th-75th percentile, 42.3-51.8) prior to surgery. Most participants were female (80.3%) and white (85.6%). The median follow-up was 6.6 years (25th-75th percentile, 5.9-7.0 years). The median percentage of maximum weight loss was 37.4% (25th-75th percentile, 31.6%-43.3%) of presurgery weight and occurred a median of 2.0 years after RYGB surgery (25th-75th percentile, 1.0-3.2 years). The rate of weight regain was highest during the first year after reaching nadir weight, but weight regain continued to increase throughout follow-up (range, a median of 9.5% of maximum weight lost [25th-75th percentile, 4.7%-17.2%] to 26.8% of maximum weight lost [25th-75th percentile, 16.7%-41.5%] 1 to 5 years after reaching nadir weight). The percentage of participants who regained weight depended on threshold (eg, 5 years after nadir weight, 43.6% regained ≥5 BMI points; 50.2% regained ≥15% of nadir weight; and 67.3% regained ≥20% of maximum weight lost). Compared with other continuous weight regain measures, the percentage of maximum weight lost had the strongest association and best model fit for all outcomes except hyperlipidemia, which had a slightly stronger association with BMI. Of the dichotomous measures, 20% or greater of maximum weight lost performed better or similarly with most of the outcomes, and was the second best measure for hyperlipidemia (after ≥10 kg of weight) and hypertension (after ≥10% of maximum weight lost). CONCLUSIONS AND RELEVANCE Among a large cohort of adults who underwent RYGB surgery, weight regain quantified as percentage of maximum weight lost performed better for association with most clinical outcomes than the alternatives examined. These findings may inform standardizing the measurement of weight regain in studies of bariatric surgery.
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Affiliation(s)
- Wendy C. King
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Amanda S. Hinerman
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Steven H. Belle
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Abdus S. Wahed
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Anita P. Courcoulas
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
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Ahmed B, King WC, Gourash W, Belle SH, Hinerman A, Pomp A, Dakin G, Courcoulas AP. Long-term weight change and health outcomes for sleeve gastrectomy (SG) and matched Roux-en-Y gastric bypass (RYGB) participants in the Longitudinal Assessment of Bariatric Surgery (LABS) study. Surgery 2018; 164:774-783. [PMID: 30139560 DOI: 10.1016/j.surg.2018.06.008] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 05/10/2018] [Accepted: 06/04/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Data from a US multicenter longitudinal study of bariatric surgery were used to compare weight change (primary outcome) and comorbidities (secondary outcome) in patients who underwent sleeve gastrectomy versus Roux-en-Y gastric bypass. METHODS This study includes participants who underwent sleeve gastrectomy and matched participants who underwent Roux-en-Y gastric bypass from the Longitudinal Assessment of Bariatric Surgery-2 (LABS-2) study. Adults undergoing initial bariatric surgical procedures between 2006 and 2009 were enrolled. Participants who underwent sleeve gastrectomy were high-risk or superobese and intended to have a second-stage procedure. Mixed models were used to evaluate percent weight change from baseline through 7 years, and diabetes, dyslipidemia, and hypertension prevalence through 5 years. RESULTS Fifty-seven of 59 participants who underwent sleeve gastrectomy were matched one to one. Most were female (68%) and white (81%), and had a median age of 49 (37-56) years and median body mass index of 56.4 (35.5-76.8) kg/m2 presurgery. Weight loss was significantly less 1 to 7 years after sleeve gastrectomy versus matched Roux-en-Y gastric bypass (eg, year 7 mean weight loss was 23.6% vs 30.4%, respectively; P = .001). For both surgical groups, prevalence of diabetes, low high-density lipoprotein, and hypertension were significantly (P < .05) lower 5 years postsurgery versus baseline. CONCLUSION Higher-risk or super-obese participants after sleeve gastrectomy lost less weight than did matched Roux-en-Y gastric bypass counterparts throughout 7 years. Both groups exhibited improvements in comorbidities from presurgery through 5 years.
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Affiliation(s)
- Bestoun Ahmed
- Department of Surgery, Division of Minimally Invasive Bariatric and General Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA.
| | - Wendy C King
- Graduate School of Public Health, Epidemiology, University of Pittsburgh, Pittsburgh, PA
| | - William Gourash
- Department of Surgery, Division of Minimally Invasive Bariatric and General Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Steven H Belle
- Graduate School of Public Health, Epidemiology & Biostatistics, University of Pittsburgh, Pittsburgh, PA
| | - Amanda Hinerman
- Graduate School of Public Health, Epidemiology, University of Pittsburgh, Pittsburgh, PA
| | - Alfons Pomp
- Department of Surgery, Division of GI, Metabolic & Bariatric Surgery, Weill Cornell Medicine, New York, NY
| | - Greg Dakin
- Department of Surgery, Division of GI, Metabolic & Bariatric Surgery, Weill Cornell Medicine, New York, NY
| | - Anita P Courcoulas
- Department of Surgery, Division of Minimally Invasive Bariatric and General Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA
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Affiliation(s)
- Wendy C King
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Steven H Belle
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania.,Department of Biostatistics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Anita P Courcoulas
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
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Baumann AA, Belle SH, James A, King AA. Specifying sickle cell disease interventions: a study protocol of the Sickle Cell Disease Implementation Consortium (SCDIC). BMC Health Serv Res 2018; 18:500. [PMID: 29945631 PMCID: PMC6020469 DOI: 10.1186/s12913-018-3297-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 06/13/2018] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Sickle cell disease (SCD) is an inherited blood disorder that results in a lifetime of anemia, severe pain, and end-organ damage that can lead to premature mortality. While the SCD field has made major medical advances, much needs to be done to improve the quality of care for people with SCD. This study capitalizes on the Sickle Cell Disease Implementation Consortium (SCDIC), a consortium of eight academic sites aiming to test implementation strategies that could lead to more accelerated application of the NHLBI guidelines for treating SCD. This report documents the process to support the consortium by specifying the interventions being developed. METHODS This study consists of three steps. The Principal Investigator of each site and two site representatives who are knowledgeable of the intervention (e.g., study coordinator or the person delivering the intervention) will answer an online survey aiming to capture components of the interventions. This survey will be completed by the site representatives three times during the study: during the development of the interventions, after one year of the interventions being implemented, and at the end of this study (after 2 years). A site visit and semi-structured interview (Step 2) in the first year of the process will capture the context of the sites. Step 3 comprises of the development of a framework with the details of the multi-component SCDIC interventions at the sites. DISCUSSION The outcome of this study, a framework of the SCDIC, will enable accurate replication and extension of published research, facilitating the translation of SCD studies to diverse populations and settings and allowing for theory testing of the effects of the intervention components across studies in different contexts and for different populations. TRIAL REGISTRATION ClinicalTrial.Gov (# NCT03380351 ). Registered December 21, 2017.
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Affiliation(s)
- Ana A. Baumann
- Brown School, Washington University in St. Louis, One Brookings Drive, Campus Box 1196, St. Louis, MO 63130 USA
| | - Steven H. Belle
- Graduate School of Public Health, University of Pittsburgh, Suite 605, 4420 Bayard St., Pittsburgh, PA 15260 USA
| | - Aimee James
- Division of Public Health Sciences, 660 South Euclid Ave. Box 8100, St Louis, MO 63110 USA
| | - Allison A. King
- Division of Public Health Sciences, 660 South Euclid Ave. Box 8100, St Louis, MO 63110 USA
- Program in Occupational Therapy; Department of Pediatrics, Division of Pediatric Hematology/Oncology; Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, MO 63108 USA
| | - the Sickle Cell Disease Implementation Consortium
- Brown School, Washington University in St. Louis, One Brookings Drive, Campus Box 1196, St. Louis, MO 63130 USA
- Graduate School of Public Health, University of Pittsburgh, Suite 605, 4420 Bayard St., Pittsburgh, PA 15260 USA
- Division of Public Health Sciences, 660 South Euclid Ave. Box 8100, St Louis, MO 63110 USA
- Program in Occupational Therapy; Department of Pediatrics, Division of Pediatric Hematology/Oncology; Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, MO 63108 USA
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Mitchell JE, Christian NJ, Flum DR, Pomp A, Pories WJ, Wolfe BM, Courcoulas AP, Belle SH. Postoperative Behavioral Variables and Weight Change 3 Years After Bariatric Surgery. JAMA Surg 2017; 151:752-7. [PMID: 27096225 DOI: 10.1001/jamasurg.2016.0395] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
IMPORTANCE Severe obesity (body mass index ≥35 [calculated as weight in kilograms divided by height in meters squared]) is associated with significant medical comorbidity and increased mortality. Bariatric surgery induces weight loss, the extent of which can vary. Postoperative predictors of weight loss have not been adequately examined. OBJECTIVE To describe postoperative eating behaviors and weight control and their effects on 3-year change in weight. DESIGN, SETTING, AND PARTICIPANTS The Longitudinal Assessment of Bariatric Surgery-2 (LABS-2) study is a multicenter observational cohort study at 10 US hospitals in 6 geographically diverse clinical centers. Adults undergoing first-time bariatric surgical procedures as part of routine clinical care were recruited between 2006 and 2009 and followed up until September 2012. Participants completed detailed surveys regarding eating and weight control behaviors prior to surgery and then annually after surgery for 3 years. MAIN OUTCOMES AND MEASURES Twenty-five postoperative behaviors related to eating behavior, eating problems, weight control practices, and the problematic use of alcohol, smoking, and illegal drugs. Behaviors examined were divided into those that were never present (preoperatively or postoperatively), those that were always present (preoperatively and postoperatively), and those that underwent a healthy change after surgery (development of a positive behavior or omission of a negative behavior). RESULTS The sample included a total of 2022 participants (median age, 47 years [interquartile range, 38-55 years]; median BMI, 46 [interquartile range, 42-51]; 78% women): 1513 who had undergone Roux-en-Y gastric bypass and 509 who had undergone laparoscopic adjustable gastric banding. If we consider the cumulative effects of the 3 behaviors that explain most of the variability (16%) in 3-year percent weight change following Roux-en-Y gastric bypass, ie, weekly self-weighing, continuing to eat when feeling full more than once a week, and eating continuously during the day, a participant who postoperatively started to self-weigh, stopped eating when feeling full, and stopped eating continuously during the day after surgery would be predicted to lose a mean (SE) of 38.8% (0.8%) of their baseline weight. This average is about 14% greater weight loss compared with participants who made no positive changes in these variables (mean [SE], -24.6% [1.6%]; mean difference, -14.2%; 95% CI, -18.7% to -9.8%; P < .001) and 6% greater weight loss compared with participants who always reported positive on these healthy behaviors (mean [SE], -33.2% [0.6%]; mean difference, -5.7%; 95% CI, -7.8% to -3.5%; P < .001). CONCLUSIONS AND RELEVANCE The results suggest the importance of assessing behaviors related to eating behavior, eating problems, weight control practices, and the problematic use of alcohol, smoking, and illegal drugs in bariatric surgery candidates and patients who have undergone bariatric surgery, and they suggest that the utility of programs to modify problematic eating behaviors and eating patterns should be addressed in research.
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Affiliation(s)
- James E Mitchell
- Neuropsychiatric Research Institute, Fargo, North Dakota2University of North Dakota School of Medicine and Health Sciences, Grand Forks
| | - Nicholas J Christian
- University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - David R Flum
- Department of Surgery, University of Washington, Seattle
| | - Alfons Pomp
- Department of Surgery, Weill-Cornell Medical Center, New York, New York
| | - Walter J Pories
- Department of Surgery, East Carolina University, Greenville, North Carolina
| | - Bruce M Wolfe
- Department of Surgery, Oregon Health and Science University, Portland
| | - Anita P Courcoulas
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Steven H Belle
- University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
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King WC, Chen JY, Belle SH, Courcoulas AP, Dakin GF, Flum DR, Hinojosa MW, Kalarchian MA, Mitchell JE, Pories WJ, Spaniolas K, Wolfe BM, Yanovski SZ, Engel SG, Steffen KJ. Use of prescribed opioids before and after bariatric surgery: prospective evidence from a U.S. multicenter cohort study. Surg Obes Relat Dis 2017; 13:1337-1346. [PMID: 28579202 DOI: 10.1016/j.soard.2017.04.003] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [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: 03/31/2017] [Accepted: 04/04/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND Limited evidence suggests bariatric surgery may not reduce opioid analgesic use, despite improvements in pain. OBJECTIVE To determine if use of prescribed opioid analgesics changes in the short and long term after bariatric surgery and to identify factors associated with continued and postsurgery initiated use. SETTING Ten U.S. hospitals. METHODS The Longitudinal Assessment of Bariatric Surgery-2 is an observational cohort study. Assessments were conducted presurgery, 6 months postsurgery, and annually postsurgery for up to 7 years until January 2015. Opioid use was defined as self-reported daily, weekly, or "as needed" use of a prescribed medication classified as an opioid analgesic. RESULTS Of 2258 participants with baseline data, 2218 completed follow-up assessment(s) (78.7% were female, median body mass index: 46; 70.6% underwent Roux-en-Y gastric bypass). Prevalence of opioid use decreased after surgery from 14.7% (95% CI: 13.3-16.2) at baseline to 12.9% (95% CI: 11.5-14.4) at month 6 but then increased to 20.3%, above baseline levels, as time progressed (95% CI: 18.2-22.5) at year 7. Among participants without baseline opioid use (n = 1892), opioid use prevalence increased from 5.8% (95% CI: 4.7-6.9) at month 6 to 14.2% (95% CI: 12.2-16.3) at year 7. Public versus private health insurance, more pain presurgery, undergoing subsequent surgeries, worsening or less improvement in pain, and starting or continuing nonopioid analgesics postsurgery were significantly associated with higher risk of postsurgery initiated opioid use. CONCLUSION After bariatric surgery, prevalence of prescribed opioid analgesic use initially decreased but then increased to surpass baseline prevalence, suggesting the need for alternative methods of pain management in this population.
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Affiliation(s)
- Wendy C King
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania.
| | - Jia-Yuh Chen
- Department of Biostatistics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Steven H Belle
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Anita P Courcoulas
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | | | - David R Flum
- Department of Surgery, University of Washington, Seattle, Washington
| | | | - Melissa A Kalarchian
- Department of Psychiatry, University of Pittsburgh School of Medicine, and Duquesne University School of Nursing, Pittsburgh, Pennsylvania
| | | | - Walter J Pories
- Department of Surgery, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - Konstantinos Spaniolas
- Department of Surgery, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - Bruce M Wolfe
- Department of Surgery, Oregon Health Sciences University, Portland, Oregon
| | - Susan Z Yanovski
- Division of Digestive Diseases and Nutrition, National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland
| | - Scott G Engel
- Neuropsychiatric Research Institute, Fargo, North Dakota
| | - Kristine J Steffen
- Neuropsychiatric Research Institute, Fargo, North Dakota; Department of Pharmaceutical Sciences, North Dakota State University, Fargo, North Dakota
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Di Bisceglie AM, Lombardero M, Teckman J, Roberts L, Janssen HLA, Belle SH, Hoofnagle JH. Determination of hepatitis B phenotype using biochemical and serological markers. J Viral Hepat 2017; 24:320-329. [PMID: 27917600 PMCID: PMC5733779 DOI: 10.1111/jvh.12643] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [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: 06/09/2016] [Accepted: 10/04/2016] [Indexed: 02/06/2023]
Abstract
The aim of this study was to assess the validity of categorization of chronic hepatitis B viral infection into stages or phases based upon measures of disease activity and viral load, assuming these phenotypes will be useful for prognostication and determining the need for antiviral therapy. We assessed the phenotype of hepatitis B of 1,390 adult participants enrolled in the Hepatitis B Research Network Cohort Study, using a computer algorithm. Only 4% were immune tolerant, while 35% had chronic hepatitis B (18% e antigen positive and 17% e antigen negative) while 23% were inactive carriers. Strikingly, 38% of participants did not fit clearly into any one of these groups and were considered indeterminant. The largest subset of indeterminants had elevated serum aminotransferases with low levels of HBV DNA (less than 10,000 iu/mL). Subsequent determination of hepatitis B phenotype on the next available laboratory tests showed that 64% remained indeterminant. These findings call into question the validity of conventional staging of hepatitis B, in large part because of the substantial proportion of patients who do not fit readily into one of the usual stages or phases. Further studies are needed of the indeterminant category of chronic hepatitis B viral infection, including assessments of whether patients in this group are perhaps in transition to another phase or if they are a distinct phenotype with a need to assess liver disease severity and need for antiviral therapy. (ClinicalTrials.gov identifier NCT01263587).
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Affiliation(s)
| | | | | | | | - Harry L. A. Janssen
- University of Toronto and Erasmus MC University Hospital Rotterdam, The Netherlands
| | | | - Jay H. Hoofnagle
- Liver Disease Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
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Affiliation(s)
- John M Jakicic
- Department of Health and Physical Activity, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Steven H Belle
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania3Department of Biostatistics, University of Pittsburgh, Pittsburgh, Pennsylvania
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Alfonso-Cristancho R, King WC, Mitchell JE, Ramanathan R, Sullivan SD, Belle SH, Flum DR. Longitudinal Evaluation of Work Status and Productivity After Bariatric Surgery. JAMA 2016; 316:1595-1597. [PMID: 27755626 PMCID: PMC5314899 DOI: 10.1001/jama.2016.12040] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
| | - Wendy C King
- University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania
| | | | | | | | - Steven H Belle
- University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania
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Jakicic JM, Davis KK, Rogers RJ, King WC, Marcus MD, Helsel D, Rickman AD, Wahed AS, Belle SH. Effect of Wearable Technology Combined With a Lifestyle Intervention on Long-term Weight Loss: The IDEA Randomized Clinical Trial. JAMA 2016; 316:1161-1171. [PMID: 27654602 PMCID: PMC5480209 DOI: 10.1001/jama.2016.12858] [Citation(s) in RCA: 319] [Impact Index Per Article: 39.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
IMPORTANCE Effective long-term treatments are needed to address the obesity epidemic. Numerous wearable technologies specific to physical activity and diet are available, but it is unclear if these are effective at improving weight loss. OBJECTIVE To test the hypothesis that, compared with a standard behavioral weight loss intervention (standard intervention), a technology-enhanced weight loss intervention (enhanced intervention) would result in greater weight loss. DESIGN, SETTING, PARTICIPANTS Randomized clinical trial conducted at the University of Pittsburgh and enrolling 471 adult participants between October 2010 and October 2012, with data collection completed by December 2014. INTERVENTIONS Participants were placed on a low-calorie diet, prescribed increases in physical activity, and had group counseling sessions. At 6 months, the interventions added telephone counseling sessions, text message prompts, and access to study materials on a website. At 6 months, participants randomized to the standard intervention group initiated self-monitoring of diet and physical activity using a website, and those randomized to the enhanced intervention group were provided with a wearable device and accompanying web interface to monitor diet and physical activity. MAIN OUTCOMES AND MEASURES The primary outcome of weight was measured over 24 months at 6-month intervals, and the primary hypothesis tested the change in weight between 2 groups at 24 months. Secondary outcomes included body composition, fitness, physical activity, and dietary intake. RESULTS Among the 471 participants randomized (body mass index [BMI], 25 to <40; age range, 18-35 years; 28.9% nonwhite, 77.2% women), 470 (233 in the standard intervention group, 237 in the enhanced intervention group) initiated the interventions as randomized, and 74.5% completed the study. For the enhanced intervention group, mean base line weight was 96.3 kg (95% CI, 94.2-98.5) and 24-month weight 92.8 kg (95% CI, 90.6- 95.0) [corrected]. For the standard intervention group, mean baseline weight was 95.2kg (95%CI,93.0-97.3)and24-month weight was 89.3 kg (95%CI, 87.1-91.5) [corrected]. Weight change at 24 months differed significantly by intervention group (estimated mean weight loss, 3.5 kg [95% CI, 2.6-4.5} in the enhanced intervention group and 5.9 kg [95% CI, 5.0-6.8] in the standard intervention group; difference, 2.4 kg [95% CI, 1.0-3.7]; P = .002). Both groups had significant improvements in body composition, fitness, physical activity, and diet, with no significant difference between groups. CONCLUSIONS AND RELEVANCE Among young adults with a BMI between 25 and less than 40, the addition of a wearable technology device to a standard behavioral intervention resulted in less weight loss over 24 months. Devices that monitor and provide feedback on physical activity may not offer an advantage over standard behavioral weight loss approaches. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT01131871.
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Affiliation(s)
- John M Jakicic
- University of Pittsburgh, Department of Health and Physical Activity, Physical Activity and Weight Management Research Center, Pittsburgh, Pennsylvania
| | - Kelliann K Davis
- University of Pittsburgh, Department of Health and Physical Activity, Physical Activity and Weight Management Research Center, Pittsburgh, Pennsylvania
| | - Renee J Rogers
- University of Pittsburgh, Department of Health and Physical Activity, Physical Activity and Weight Management Research Center, Pittsburgh, Pennsylvania
| | - Wendy C King
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Marsha D Marcus
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Diane Helsel
- Department of Nutrition and Exercise Science, Bastyr University, Kenmore, Washington
| | - Amy D Rickman
- Department of Exercise and Rehabilitative Sciences, Slippery Rock University of Pennsylvania, Slippery Rock
| | - Abdus S Wahed
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Steven H Belle
- Department of Epidemiology and Department of Biostatistics, University of Pittsburgh, Pittsburgh, Pennsylvania
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Abstract
The aim of this study was to assess a newly developed measure for the positive aspects of caregiving using a sample of dementia caregivers. The measure was developed and administered to 1,229 participants in a national collaborative Alzheimer’s disease caregiver study and evaluated for validity and reliability using standard psychometric analyses. Factor analysis identified two components in this nine-item measure: Self-Affirmation and Outlook on Life. Cronbach’s alphas for the components were .86 and .80, respectively. For the entire scale, Cronbach’s alpha was .89. The Positive Aspects of Caregiving measure, tested with a large, diverse, and well-characterized sample shows promise as a valid and reliable instrument. With additional implementation and testing, the measure has the potential to substantially increase our understanding of basic caregiving research and the outcomes of intervention efforts.
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King WC, Chen JY, Belle SH. Pain and Physical Function Following Bariatric Surgery--Reply. JAMA 2016; 316:771. [PMID: 27533166 DOI: 10.1001/jama.2016.8593] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Wendy C King
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jia-Yuh Chen
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Steven H Belle
- Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
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Tate DF, Lytle LA, Sherwood NE, Haire-Joshu D, Matheson D, Moore SM, Loria CM, Pratt C, Ward DS, Belle SH, Michie S. Deconstructing interventions: approaches to studying behavior change techniques across obesity interventions. Transl Behav Med 2016; 6:236-43. [PMID: 27356994 PMCID: PMC4927444 DOI: 10.1007/s13142-015-0369-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [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] [Indexed: 01/26/2023] Open
Abstract
Deconstructing interventions into the specific techniques that are used to change behavior represents a new frontier in behavioral intervention research. This paper considers opportunities and challenges in employing the Behavior Change Techniques Taxonomy (BCTTv1) developed by Michie and colleagues, to code the behavior change techniques (BCTs) across multiple interventions addressing obesity and capture dose received at the technique level. Numerous advantages were recognized for using a shared framework for intervention description. Coding interventions at levels of the social ecological framework beyond the individual level, separate coding for behavior change initiation vs. maintenance, fidelity of BCT delivery, accounting for BCTs mode of delivery, and tailoring BCTs, present both challenges and opportunities. Deconstructing interventions and identifying the dose required to positively impact health-related outcomes could enable important gains in intervention science.
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Affiliation(s)
- Deborah F Tate
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
| | - Leslie A Lytle
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Nancy E Sherwood
- HealthPartners Institute for Education and Research, Bloomington, MN, USA
| | | | - Donna Matheson
- Department of Pediatrics & Stanford Prevention Research Center, Stanford University, Stanford, CA, USA
| | - Shirley M Moore
- Frances Payne Bolton School of Nursing, Case Western Reserve University, Cleveland, OH, USA
| | | | - Charlotte Pratt
- National Heart, Lung and Blood Institute, NIH, Bethesda, MD, USA
| | - Dianne S Ward
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Steven H Belle
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, PA, USA
| | - Susan Michie
- Centre for Behaviour Change, Department of Clinical, Educational and Health Psychology, University College London, London, UK
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Gibbs BB, King WC, Belle SH, Jakicic JM. Six-month changes in ideal cardiovascular health vs. Framingham 10-year coronary heart disease risk among young adults enrolled in a weight loss intervention. Prev Med 2016; 86:123-9. [PMID: 26923555 PMCID: PMC4837008 DOI: 10.1016/j.ypmed.2016.02.033] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 09/23/2015] [Revised: 01/14/2016] [Accepted: 02/22/2016] [Indexed: 11/29/2022]
Abstract
The Framingham Risk equation uses sex, age, smoking, total cholesterol, high-density lipoprotein (HDL) cholesterol and systolic blood pressure to predict 10-year risk of coronary heart disease (FR-10). The American Heart Association's Ideal Cardiovascular Health (IDEAL) score uses smoking, total cholesterol, fasting glucose, blood pressure, body mass index (BMI), diet, and physical activity to encourage a healthy cardiovascular phenotype. This study aimed to compare 6-month changes in the FR-10 vs. IDEAL score among young adults with BMI ≥25 to <40kg/m(2) enrolled in a behavioral weight loss intervention at the University of Pittsburgh (2010-12). Medians [25th, 75th percentiles] are reported. Weight decreased by 8kg [-12, -4] among 335 participants. Of 7 possible points, IDEAL score was 4 [3, 4] at baseline, improved (i.e., increased) by 1 [0, 2] over 6months, and improved in 64.2% and worsened in 6.6% of participants (p<0.001). IDEAL classification of BMI, physical activity, total cholesterol, blood pressure and glucose improved (all p<0.001), but not of smoking or diet (both p≥0.05). FR-10 was <1% at baseline for 88.1% of participants and changed in few participants (improved, i.e. decreased, in 7.5%, worsened in 1.8%, p<0.001). Among young adults with overweight or obesity enrolled in a weight loss intervention, IDEAL detected positive changes in a majority of participants while the FR-10 did not. These findings suggest that IDEAL score may be more sensitive to positive cardiovascular health changes resulting from a behavioral intervention in this population.
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Affiliation(s)
| | - Wendy C King
- Department of Epidemiology, School of Public Health, University of Pittsburgh, USA
| | - Steven H Belle
- Department of Epidemiology, School of Public Health, University of Pittsburgh, USA
| | - John M Jakicic
- Department of Health and Physical Activity, University of Pittsburgh, USA
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King WC, Chen JY, Belle SH, Courcoulas AP, Dakin GF, Elder KA, Flum DR, Hinojosa MW, Mitchell JE, Pories WJ, Wolfe BM, Yanovski SZ. Change in Pain and Physical Function Following Bariatric Surgery for Severe Obesity. JAMA 2016; 315:1362-71. [PMID: 27046364 PMCID: PMC4856477 DOI: 10.1001/jama.2016.3010] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
IMPORTANCE The variability and durability of improvements in pain and physical function following Roux-en-Y gastric bypass (RYGB) or laparoscopic adjustable gastric banding (LAGB) are not well described. OBJECTIVES To report changes in pain and physical function in the first 3 years following bariatric surgery, and to identify factors associated with improvement. DESIGN, SETTING, AND PARTICIPANTS The Longitudinal Assessment of Bariatric Surgery-2 is an observational cohort study at 10 US hospitals. Adults with severe obesity undergoing bariatric surgery were recruited between February 2005 and February 2009. Research assessments were conducted prior to surgery and annually thereafter. Three-year follow-up through October 2012 is reported. EXPOSURES Bariatric surgery as clinical care. MAIN OUTCOMES AND MEASURES Primary outcomes were clinically meaningful presurgery to postsurgery improvements in pain and function using scores from the Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36) (ie, improvement of ≥5 points on the norm-based score [range, 0-100]) and 400-meter walk time (ie, improvement of ≥24 seconds) using established thresholds. The secondary outcome was clinically meaningful improvement using the Western Ontario McMaster Osteoarthritis Index (ie, improvement of ≥9.7 pain points and ≥9.3 function points on the transformed score [range, 0-100]). RESULTS Of 2458 participants, 2221 completed baseline and follow-up assessments (1743 [78.5%] were women; median age was 47 years; median body mass index [BMI] was 45.9; 70.4% underwent RYGB; 25.0% underwent LAGB). At year 1, clinically meaningful improvements were shown in 57.6% (95% CI, 55.3%-59.9%) of participants for bodily pain, 76.5% (95% CI, 74.6%-78.5%) for physical function, and 59.5% (95% CI, 56.4%-62.7%) for walk time. Additionally, among participants with severe knee or disability (633), or hip pain or disability (500) at baseline, approximately three-fourths experienced joint-specific improvements in knee pain (77.1% [95% CI, 73.5%-80.7%]) and in hip function (79.2% [95% CI, 75.3%-83.1%]). Between year 1 and year 3, rates of improvement significantly decreased to 48.6% (95% CI, 46.0%-51.1%) for bodily pain and to 70.2% (95% CI, 67.8%-72.5%) for physical function, but improvement rates for walk time, knee and hip pain, and knee and hip function did not (P for all ≥.05). Younger age, male sex, higher income, lower BMI, and fewer depressive symptoms presurgery; no diabetes and no venous edema with ulcerations postsurgery (either no history or remission); and presurgery-to-postsurgery reductions in weight and depressive symptoms were associated with presurgery-to-postsurgery improvements in multiple outcomes at years 1, 2, and 3. CONCLUSIONS AND RELEVANCE Among a cohort of participants with severe obesity undergoing bariatric surgery, a large percentage experienced improvement, compared with baseline, in pain, physical function, and walk time over 3 years, but the percentage with improvement in pain and physical function decreased between year 1 and year 3. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT00465829.
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Affiliation(s)
- Wendy C King
- University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Jia-Yuh Chen
- University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Steven H Belle
- University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania
| | | | | | - Katherine A Elder
- Oregon Health and Science University, Portland5Now with Pacific University, Forest Grove, Oregon, and the Oregon Health and Science University, Portland
| | | | | | | | - Walter J Pories
- Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | | | - Susan Z Yanovski
- National Institute of Diabetes and Digestive and Kidney Diseases, Bethesda, Maryland
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Li R, Belle SH, Horslen S, Chen LW, Zhang S, Squires RH. Clinical Course among Cases of Acute Liver Failure of Indeterminate Diagnosis. J Pediatr 2016; 171:163-70.e1-3. [PMID: 26831743 PMCID: PMC4808594 DOI: 10.1016/j.jpeds.2015.12.065] [Citation(s) in RCA: 24] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 11/05/2015] [Accepted: 12/23/2015] [Indexed: 01/04/2023]
Abstract
OBJECTIVE To investigate the heterogeneity in clinical course among those with pediatric acute liver failure (PALF) of indeterminate disease etiology. STUDY DESIGN We studied participants enrolled in the PALF registry study with indeterminate final diagnosis. Growth mixture modeling was used to analyze participants' international normalized ratio, total bilirubin, and hepatic encephalopathy trajectories in the first 7 days following enrollment. Participants with at least 3 values for 1 or more of the measurements were included. We examined the association between the resulting latent subgroup classification with participants' characteristics and disease outcomes. Data from participants with PALF of specified etiologies were used to investigate the potential diagnostic value of the latent subgroups. RESULTS In this sample of 380 participants with indeterminate final diagnosis, 115 (30%) experienced mild and quickly improving disease trajectories and another 48 (13%) started with severe disease but improved by day 7. The majority of participants (216, 57%) had disease trajectories that worsened over time. The identified patterns of disease trajectories are predictive of outcome (P < .001). The trajectory patterns are associated with the underlying disease etiology (P < .001) for the 488 participants with PALF of specified etiologies. CONCLUSIONS The clinical courses of participants with PALF of indeterminate disease etiology exhibit distinct trajectory patterns, which have important prognostic and potentially diagnostic value.
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Affiliation(s)
- Ruosha Li
- Department of Biostatistics, University of Texas School of Public Health, Houston, TX
| | - Steven H Belle
- Department of Epidemiology, University of Pittsburgh, Pittsburgh, PA
| | - Simon Horslen
- Division of Gastroenterology, Seattle Children's Hospital, Seattle, WA
| | - Ling-wan Chen
- Department of Statistics, University of Pittsburgh, Pittsburgh, PA
| | - Song Zhang
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA
| | - Robert H Squires
- Division of Gastroenterology, Hepatology and Nutrition, Children's Hospital of Pittsburgh of the University of Pittsburgh Medical Center, Pittsburgh, PA.
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Courcoulas AP, Belle SH, Neiberg RH, Pierson SK, Eagleton JK, Kalarchian MA, DeLany JP, Lang W, Jakicic JM. Three-Year Outcomes of Bariatric Surgery vs Lifestyle Intervention for Type 2 Diabetes Mellitus Treatment: A Randomized Clinical Trial. JAMA Surg 2016; 150:931-40. [PMID: 26132586 DOI: 10.1001/jamasurg.2015.1534] [Citation(s) in RCA: 249] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
IMPORTANCE Questions remain about the role and durability of bariatric surgery for type 2 diabetes mellitus (T2DM). OBJECTIVE To compare the remission of T2DM following surgical and nonsurgical treatments. DESIGN, SETTING, AND PARTICIPANTS In this 3-arm randomized clinical trial conducted at the University of Pittsburgh Medical Center from October 1, 2009, to June 26, 2014, in Pittsburgh, Pennsylvania, outcomes were assessed 3 years after treating 61 obese participants aged 25 to 55 years with T2DM. Analysis was conducted with an intent-to-treat population. INTERVENTIONS Participants were randomized to either an intensive lifestyle weight loss intervention for 1 year followed by a low-level lifestyle intervention for 2 years or surgical treatments (Roux-en-Y gastric bypass [RYGB] or laparoscopic adjustable gastric banding [LAGB]) followed by low-level lifestyle intervention in years 2 and 3. MAIN OUTCOMES AND MEASURES Primary end points were partial and complete T2DM remission and secondary end points included diabetes medications and weight change. RESULTS Body mass index (calculated as weight in kilograms divided by height in meters squared) was less than 35 for 26 participants (43%), 50 (82%) were women, and 13 (21%) were African American. Mean (SD) values were 100.5 (13.7) kg for weight, 47.3 (6.6) years for age, 7.8% (1.9%) for hemoglobin A1c level, and 171.3 (72.5) mg/dL for fasting plasma glucose level. Partial or complete T2DM remission was achieved by 40% (n = 8) of RYGB, 29% (n = 6) of LAGB, and no intensive lifestyle weight loss intervention participants (P = .004). The use of diabetes medications was reduced more in the surgical groups than the lifestyle intervention-alone group, with 65% of RYGB, 33% of LAGB, and none of the intensive lifestyle weight loss intervention participants going from using insulin or oral medication at baseline to no medication at year 3 (P < .001). Mean (SE) reductions in percentage of body weight at 3 years were the greatest after RYGB at 25.0% (2.0%), followed by LAGB at 15.0% (2.0%) and lifestyle treatment at 5.7% (2.4%) (P < .01). CONCLUSIONS AND RELEVANCE Among obese participants with T2DM, bariatric surgery with 2 years of an adjunctive low-level lifestyle intervention resulted in more disease remission than did lifestyle intervention alone. TRIAL REGISTRATION clinicaltrials.gov Identifier: NCT01047735.
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Affiliation(s)
- Anita P Courcoulas
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Steven H Belle
- Department of Biostatistics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania3Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Rebecca H Neiberg
- Department of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem, South Carolina
| | - Sheila K Pierson
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Jessie K Eagleton
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | | | - James P DeLany
- Division of Endocrinology and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Wei Lang
- Department of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem, South Carolina
| | - John M Jakicic
- Physical Activity and Weight Management Research Center, Department of Health and Physical Activity, University of Pittsburgh, Pittsburgh, Pennsylvania
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Jakicic JM, King WC, Marcus MD, Davis KK, Helsel D, Rickman AD, Gibbs BB, Rogers RJ, Wahed A, Belle SH. Short-term weight loss with diet and physical activity in young adults: The IDEA study. Obesity (Silver Spring) 2015; 23:2385-97. [PMID: 26538477 PMCID: PMC4701624 DOI: 10.1002/oby.21241] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [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: 05/24/2015] [Revised: 07/20/2015] [Accepted: 07/20/2015] [Indexed: 11/06/2022]
Abstract
OBJECTIVE This study examined the effect of a behavioral weight loss intervention (BWLI) on young adults (age = 18-35 years). METHODS Participants (N = 470) enrolled in a 6-month BWLI that included weekly group sessions, a prescribed energy-restricted diet, and moderate to vigorous physical activity (MVPA). Assessments included weight, body composition, fitness, lipids, glucose, insulin, resting blood pressure and heart rate, physical activity, and dietary intake. Data are presented as median [25th, 75th percentiles]. RESULTS Retention was 90% (N = 424; age: 30.9 [27.8, 33.7] years; BMI: 31.2 [28.4, 34.3] kg m(-2) ). Participants completed 87.5% [76.1%, 95.5%] of scheduled intervention contacts. Weight and body fat decreased while fitness increased (P < 0.0001). MVPA in bouts ≥10 min increased (P < 0.0001), though total MVPA did not change significantly. Sedentary time decreased (P = 0.03). Energy and percent fat intake decreased, while percent carbohydrate and protein intake increased (P < 0.0001). Systolic and diastolic blood pressure, total cholesterol, LDL cholesterol, triglycerides, glucose, and insulin decreased (P < 0.0001). CONCLUSIONS A 6-month BWLI produced favorable changes in dietary intake and physical activity and elicited favorable changes in weight and other health outcomes in young adults. MVPA performed in bouts of ≥10 min was associated with greater weight loss, but sedentary behavior was not.
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Affiliation(s)
- John M. Jakicic
- Department of Health and Physical Activity, Physical Activity and Weight Management Research Center, University of Pittsburgh
| | - Wendy C. King
- Department of Epidemiology and Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh
| | - Marsha D. Marcus
- Department of Psychiatry, School of Medicine, University of Pittsburgh
| | - Kelliann K. Davis
- Department of Health and Physical Activity, Physical Activity and Weight Management Research Center, University of Pittsburgh
| | - Diane Helsel
- Department of Nutrition and Exercise Science, Bastyr University
| | - Amy D. Rickman
- Department of Health and Physical Activity, Physical Activity and Weight Management Research Center, University of Pittsburgh
| | - Bethany Barone Gibbs
- Department of Health and Physical Activity, Physical Activity and Weight Management Research Center, University of Pittsburgh
| | - Renee J. Rogers
- Department of Health and Physical Activity, Physical Activity and Weight Management Research Center, University of Pittsburgh
| | - Abdus Wahed
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh
| | - Steven H. Belle
- Department of Psychiatry, School of Medicine, University of Pittsburgh
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh
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Jakicic JM, King WC, Gibbs BB, Rogers RJ, Rickman AD, Davis KK, Wahed A, Belle SH. Objective Versus Self-Reported Physical Activity in Overweight and Obese Young Adults. J Phys Act Health 2015; 12:1394-400. [PMID: 25599334 PMCID: PMC4506910 DOI: 10.1123/jpah.2014-0277] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [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] [Indexed: 11/18/2022]
Abstract
BACKGROUND To compare moderate-to-vigorous intensity physical activity (MVPA) assessed via questionnaires to an objective measure of MVPA in overweight or obese young adults. METHODS MVPA was assessed in 448 [median BMI = 31.2 (Interquartile Range: 28.5-34.3) kg/m2] young adults [median age: 30.9 (Interquartile Range: 27.8-33.7) years]. Measures included the SenseWear Armband (MVPAOBJ), the Paffenbarger Questionnaire (MVPAPAFF), and the Global Physical Activity Questionnaire (GPAQ). The GPAQ was used to compute total MVPA (MVPAGPAQ-TOTAL) and MVPA from transportation and recreation (MVPAGPAQ-REC). RESULTS The association between MVPAOBJ and MVPAPAFF was rs = 0.40 (P < .0001). Associations between MVPAOBJ and MVPAGPAQ-TOTAL and MVPAGPAQ-REC were rs = 0.19 and rs = 0.32, respectively (P < .0001). MVPAGPAQ-TOTAL was significantly greater than MVPAOBJ (P < .0001). Median differences in MET-min/week between MVPAOBJ and MVPAPAFF or MVPAGPAQ-REC were not significantly different from zero. There was proportional bias between each self-reported measure of MVPA and MVPAOBJ. There were significant associations between all measures of MVPA and fitness. MVPAOBJ was significantly associated with BMI and percent body fat. CONCLUSIONS Objective and self-reported measures of MVPA are weakly to moderately correlated, with substantial differences between measures. MVPAOBJ provided predictive validity with fitness, BMI, and percent body fat. Thus, an objective measure of MVPA may be preferred to self-report in young adults.
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Affiliation(s)
- John M. Jakicic
- Department of Health and Physical Activity, Physical Activity and Weight Management Research Center, University of Pittsburgh, Pittsburgh, PA,
| | - Wendy C. King
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA,
| | - Bethany Barone Gibbs
- Department of Health and Physical Activity, Physical Activity and Weight Management Research Center, University of Pittsburgh, Pittsburgh, PA,
| | - Renee J. Rogers
- Department of Health and Physical Activity, Physical Activity and Weight Management Research Center, University of Pittsburgh, Pittsburgh, PA,
| | - Amy D. Rickman
- Department of Health and Physical Activity, Physical Activity and Weight Management Research Center, University of Pittsburgh, Pittsburgh, PA,
| | - Kelliann K. Davis
- Department of Health and Physical Activity, Physical Activity and Weight Management Research Center, University of Pittsburgh, Pittsburgh, PA,
| | - Abdus Wahed
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA,
| | - Steven H. Belle
- Department of Epidemiology and Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA,
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Subak LL, King WC, Belle SH, Chen JY, Courcoulas AP, Ebel FE, Flum DR, Khandelwal S, Pender JR, Pierson SK, Pories WJ, Steffen KJ, Strain GW, Wolfe BM, Huang AJ. Urinary Incontinence Before and After Bariatric Surgery. JAMA Intern Med 2015; 175:1378-87. [PMID: 26098620 PMCID: PMC4529061 DOI: 10.1001/jamainternmed.2015.2609] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [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: 11/14/2022]
Abstract
IMPORTANCE Among women and men with severe obesity, evidence for improvement in urinary incontinence beyond the first year after bariatric surgery-induced weight loss is lacking. OBJECTIVES To examine change in urinary incontinence before and after bariatric surgery and to identify factors associated with improvement and remission among women and men in the first 3 years after bariatric surgery. DESIGN, SETTING, AND PARTICIPANTS The Longitudinal Assessment of Bariatric Surgery 2 is an observational cohort study at 10 US hospitals in 6 geographically diverse clinical centers. Participants were recruited between February 21, 2005, and February 17, 2009. Adults undergoing first-time bariatric surgical procedures as part of clinical care by participating surgeons between March 14, 2006, and April 24, 2009, were followed up for 3 years (through October 24, 2012). INTERVENTION Participants undergoing bariatric surgery completed research assessments before the procedure and annually thereafter. MAIN OUTCOMES AND MEASURES The frequency and type of urinary incontinence episodes in the past 3 months were assessed using a validated questionnaire. Prevalent urinary incontinence was defined as at least weekly urinary incontinence episodes, and remission was defined as change from prevalent urinary incontinence at baseline to less than weekly urinary incontinence episodes at follow-up. RESULTS Of 2458 participants, 1987 (80.8%) completed baseline and follow-up assessments. At baseline, the median age was 47 years (age range, 18-78 years), the median body mass index was 46 kg/m2 (range, 34-94 kg/m2), and 1565 of 1987 (78.8%) were women. Urinary incontinence was more prevalent among women (49.3%; 95% CI, 46.9%-51.9%) than men (21.8%; 95% CI, 18.2%-26.1%) (P < .001). After a mean 1-year weight loss of 29.5% (95% CI, 29.0%-30.1%) in women and 27.0% (95% CI, 25.9%-28.6%) in men, year 1 urinary incontinence prevalence was significantly lower among women (18.3%; 95% CI, 16.4%-20.4%) and men (9.8%; 95% CI, 7.2%-13.4%) (P < .001 for all). The 3-year prevalence was higher than the 1-year prevalence for both sexes (24.8%; 95% CI, 21.8%-26.5% among women and 12.2%; 95% CI, 9.0%-16.4% among men) but was substantially lower than baseline (P < .001 for all). Weight loss was independently related to urinary incontinence remission (relative risk, 1.08; 95% CI, 1.06-1.10 in women and 1.07; 95% CI, 1.02-1.13 in men) per 5% weight loss, as were younger age and the absence of a severe walking limitation. CONCLUSIONS AND RELEVANCE Among women and men with severe obesity, bariatric surgery was associated with substantially reduced urinary incontinence over 3 years. Improvement in urinary incontinence may be an important benefit of bariatric surgery.
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Affiliation(s)
- Leslee L Subak
- Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California, San Francisco2Department of Epidemiology and Biostatistics, University of California, San Francisco3Department of Urology, University of California, San Francisco4S
| | - Wendy C King
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Steven H Belle
- Department of Epidemiology, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania6Department of Biostatistics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Jia-Yuh Chen
- Department of Biostatistics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
| | - Anita P Courcoulas
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Faith E Ebel
- GI Metabolic and Bariatric Surgery, Weill Cornell Medical College, New York, New York
| | - David R Flum
- Department of Surgery, University of Washington, Seattle
| | | | - John R Pender
- Department of Surgery, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - Sheila K Pierson
- Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Walter J Pories
- Department of Surgery, Brody School of Medicine, East Carolina University, Greenville, North Carolina
| | - Kristine J Steffen
- Department of Neuroscience, Neuropsychiatric Research Institute, University of North Dakota School of Medicine and Health Sciences, Grand Forks
| | - Gladys W Strain
- GI Metabolic and Bariatric Surgery, Weill Cornell Medical College, New York, New York
| | - Bruce M Wolfe
- Department of Surgery, Oregon Health & Science University, Portland
| | - Alison J Huang
- Department of Medicine, University of California, San Francisco
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King WC, Chen JY, Bond DS, Belle SH, Courcoulas AP, Patterson EJ, Mitchell JE, Inabnet WB, Dakin GF, Flum DR, Cook B, Wolfe BM. Objective assessment of changes in physical activity and sedentary behavior: Pre- through 3 years post-bariatric surgery. Obesity (Silver Spring) 2015; 23:1143-50. [PMID: 26010326 PMCID: PMC4445467 DOI: 10.1002/oby.21106] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [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: 01/29/2015] [Revised: 03/09/2015] [Accepted: 03/09/2015] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To evaluate change in sedentary behavior (SB) and physical activity (PA) over 3 years following bariatric surgery. METHODS A subset of participants in an observational study (n = 473 of 2,458; 79% female, median body mass index 45 kg m(-2) ) wore an activity monitor presurgery and at 1-3 annual postsurgery assessments. RESULTS Over the first year, on average, sedentary time decreased from 573 (95% CI: 563-582) to 545 (95% CI: 534-555) min days(-1) and moderate- to vigorous-intensity PA (MVPA) increased from 77 (95% CI: 71-84) to 106 (95% CI: 98-116) min week(-1) , or 7 (95% CI: 5-10) to 24 (95% CI: 18-29) min week(-1) in MVPA bouts ≥10 min. There were no changes in these parameters from years 1 to 3 (P for all > 0.05). The percentage of participants achieving ≥150 min week(-1) of bout-related MVPA was not different at year 3 [6.5% (95% CI: 3.1-12.7)] vs. presurgery [3.4% (95% CI: 1.8-5.0); P = 0.45]. Most participants followed SB and PA trajectories that paralleled mean change and were consistent with their presurgery position in relation to the group. CONCLUSIONS On average, bariatric surgical patients make small reductions in SB and increases in PA during the first postsurgery year, which are maintained through 3 years. Still, postsurgery PA levels fall short of PA guidelines for general health or weight control.
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Affiliation(s)
- Wendy C King
- Department of Epidemiology, University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania, USA
| | - Jia-Yuh Chen
- Department of Biostatistics, University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania, USA
| | - Dale S Bond
- Department of Psychiatry and Behavioral Medicine, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Steven H Belle
- Department of Epidemiology, University of Pittsburgh, Graduate School of Public Health, Pittsburgh, Pennsylvania, USA
| | - Anita P Courcoulas
- Department of Minimally Invasive General and Bariatric Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Emma J Patterson
- Department of Surgery, Legacy Good Samaritan Weight Management Institute, Portland, Oregon, USA
| | - James E Mitchell
- Neuropsychiatric Research Institute and the Department of Neuroscience, University of North Dakota School of Medicine and Health Sciences, Fargo, North Dakota, USA
| | - William B Inabnet
- Department of Surgery, Mount Sinai Hospital, New York, New York, USA
| | - George F Dakin
- Department of Surgery, Weill Cornell Medical Center, New York, New York, USA
| | - David R Flum
- School of Medicine, Department of General Surgery, University of Washington, Seattle, Washington, USA
| | - Brian Cook
- Neuropsychiatric Research Institute and the Department of Neuroscience, University of North Dakota School of Medicine and Health Sciences, Fargo, North Dakota, USA
| | - Bruce M Wolfe
- Department of General Surgery, Oregon Health and Science University, Portland, Oregon, USA
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