Life years lost associated with mental illness: A cohort study of beneficiaries of a South African medical insurance scheme.

Journal: Journal of affective disorders

Volume: 340

Issue: 

Year of Publication: 2023

Affiliated Institutions:  Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland. Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa. Medscheme, Cape Town, South Africa. Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland; Graduate School of Health Sciences, University of Bern, Bern, Switzerland. Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland; Department of Sociology, Ludwig-Maximilians-Universität München, Germany. Centre for Infectious Disease Epidemiology & Research, School of Public Health, University of Cape Town, Cape Town, South Africa. Centre for Infectious Disease Epidemiology & Research, School of Public Health, University of Cape Town, Cape Town, South Africa; Department of Statistics, Ludwig-Maximilians-Universität München, Germany. HIV Mental Health Research Unit, Neuroscience Institute, University of Cape Town, Cape Town, South Africa; Division of Neuropsychiatry, Department of Psychiatry and Mental Health, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa. Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland; Centre for Infectious Disease Epidemiology & Research, School of Public Health, University of Cape Town, Cape Town, South Africa; Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK. Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland. Electronic address: andreas.haas@unibe.ch.

Abstract summary 

People with mental illness have a reduced life expectancy, but the extent of the mortality gap and the contribution of natural and unnatural causes to excess mortality among people with mental illness in South Africa are unknown.We analysed reimbursement claims from South African medical insurance scheme beneficiaries aged 15-85 years. We estimated excess life years lost (LYL) associated with organic, substance use, psychotic, mood, anxiety, eating, personality, developmental or any mental disorders.We followed 1,070,183 beneficiaries for a median of three years, of whom 282,926 (26.4 %) received mental health diagnoses. Men with a mental health diagnosis lost 3.83 life years (95 % CI 3.58-4.10) compared to men without. Women with a mental health diagnosis lost 2.19 life years (1.97-2.41) compared to women without. Excess mortality varied by sex and diagnosis, from 11.50 LYL (95 % CI 9.79-13.07) among men with alcohol use disorder to 0.87 LYL (0.40-1.43) among women with generalised anxiety disorder. Most LYL were attributable to natural causes (men: 3.42, women: 1.94). A considerable number of LYL were attributable to unnatural causes among men with bipolar (1.52) or substance use (2.45) disorder.Mental diagnoses are based on reimbursement claims.Premature mortality among South African individuals with mental disorders is high. Our findings support interventions for the prevention, early detection, and treatment of physical comorbidities in this population. Targeted programs for suicide prevention and substance use treatment, particularly among men, can help reduce excess mortality from unnatural causes.

Authors & Co-authors:  Ruffieux Yann Y Wettstein Anja A Maartens Gary G Folb Naomi N Mesa-Vieira Cristina C Didden Christiane C Tlali Mpho M Williams Chanwyn C Cornell Morna M Schomaker Michael M Johnson Leigh F LF Joska John A JA Egger Matthias M Haas Andreas D AD

Study Outcome 

Source Link: Visit source

Statistics
Citations :  Andersen PK, 2013. Decomposition of number of life years lost according to causes of death. Stat. Med. 32, 5278–5285. 10.1002/sim.5903.
Authors :  14
Identifiers
Doi : 10.1016/j.jad.2023.08.013
SSN : 1573-2517
Study Population
Men,Women,Male
Mesh Terms
Male
Other Terms
Excess mortality;Life years lost;Mental disorders;South Africa
Study Design
Cohort Study,Cross Sectional Study
Study Approach
Country of Study
South Africa
Publication Country
Netherlands