Cited by 619Schizophrenia research and treatmentMental Health Treatment and AccessMental Health and Psychiatry

Comorbidities and mortality in persons with schizophrenia: a Swedish national cohort study

Crump, Casey, Winkleby, Marilyn A., Sundquist, Kristina, Sundquist, Jan·2013·American Journal of Psychiatry

Abstract

OBJECTIVE: Schizophrenia is associated with premature mortality, but the specific causes and pathways are unclear. The authors used outpatient and inpatient data for a national population to examine the association between schizophrenia and mortality and comorbidities. METHOD: This was a national cohort study of 6,097,834 Swedish adults, including 8,277 with schizophrenia, followed for 7 years (2003-2009) for mortality and comorbidities diagnosed in any outpatient or inpatient setting nationwide. RESULTS: On average, men with schizophrenia died 15 years earlier, and women 12 years earlier, than the rest of the population, and this was not accounted for by unnatural deaths. The leading causes were ischemic heart disease and cancer. Despite having twice as many health care system contacts, schizophrenia patients had no increased risk of nonfatal ischemic heart disease or cancer diagnoses, but they had an elevated mortality from ischemic heart disease (adjusted hazard ratio for women, 3.33 [95% CI=2.73-4.05]; for men, 2.20 [95% CI=1.83-2.65]) and cancer (adjusted hazard ratio for women, 1.71 [95% CI=1.38-2.10; for men, 1.44 [95% CI=1.15-1.80]). Among all people who died from ischemic heart disease or cancer, schizophrenia patients were less likely than others to have been diagnosed previously with these conditions (for ischemic heart disease, 26.3% compared with 43.7%; for cancer, 73.9% compared with 82.3%). The association between schizophrenia and mortality was stronger among women and the employed. Lack of antipsychotic treatment was also associated with elevated mortality. CONCLUSIONS: Schizophrenia patients had markedly premature mortality, and the leading causes were ischemic heart disease and cancer, which appeared to be underdiagnosed. Preventive interventions should prioritize primary health care tailored to this population, including more effective risk modification and screening for cardiovascular disease and cancer.

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Crossref · 10.1176/appi.ajp.2012.12050599

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Authors
Crump, C., Winkleby, M. A., Sundquist, K., & Sundquist, J.
Affiliations
Lund University (SE)
Venue
American Journal of Psychiatry
Published
2013-03
Volume
170
Issue
3
Pages
324-333
ISSN
  • 0002-953X (ISSN-L)
  • 1535-7228
OpenAlex
W2157959378
Cited by
619
References
50
Citations by year
2026: 20 · 2025: 28 · 2024: 49 · 2023: 58 · 2022: 47 · 2021: 51 · 2020: 58 · 2019: 63 · 2018: 40 · 2017: 59 · 2016: 40 · 2015: 39 · 2014: 46 · 2013: 20
FWCI
34.37
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Lund University Publications (Lund University) (submittedVersion)
Funders
National Institute on Drug Abuse (R01DA030005)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Social Sciences › Psychology › Social Psychology › Mental Health Treatment and Access
  • Social Sciences › Arts and Humanities › Philosophy › Mental Health and Psychiatry
Keywords
schizophrenia, premature mortality, comorbidities, ischemic heart disease, cancer, sex differences, employment status, antipsychotic drugs, underdiagnosis, cardiovascular screening, cancer screening, primary care
MeSH terms
Adult, Aged, Aged, 80 and over, Ambulatory Care, Cause of Death, Female, Hospitalization, Humans, Life Expectancy, Male, Middle Aged, Neoplasms, Risk, Schizophrenia, Sweden, Cohort Studies, Comorbidity, Myocardial Ischemia, Young Adult

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