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Endogenous and Antipsychotic-Related Risks for Diabetes Mellitus in Young People With Schizophrenia: A Danish Population-Based Cohort Study

Rajkumar, Anto P.; Horsdal, Henriette Thisted; Wimberley, Theresa; Cohen, Dan; Mors, Ole; B�rglum, Anders D.; Gasse, Christiane

Endogenous and Antipsychotic-Related Risks for Diabetes Mellitus in Young People With Schizophrenia: A Danish Population-Based Cohort Study Thumbnail


Authors

Henriette Thisted Horsdal

Theresa Wimberley

Dan Cohen

Ole Mors

Anders D. B�rglum

Christiane Gasse



Abstract

Objective: Diabetes mellitus contributes to excessive cardiovascular deaths and reduced life expectancy in schizophrenia. This population-based cohort study investigated the endogenous risk for diabetes in antipsychotic-naive schizophrenia and evaluated the risks added by starting antipsychotic treatment in people with schizophrenia. Method: The study followed all people born in Denmark onor after Jan. 1, 1977, until Jan. 1, 2013 (N=2,736,510). The Danish Psychiatric Central Research Register ascertained schizophrenia diagnoses. The Danish National Prescription Registry provided data on prescriptions of antipsychotics. Diabetes was ascertained fromthe Danish National Patient Register and Danish National Prescription Registry. The authors estimated the endogenous and antipsychotic-related risks for diabetes by using Cox proportional hazards regression models, while accounting for potential confounders. Results: Of the cohort members, 14,118 (0.52%) developed diabetes, and 8,945 (0.33%) developed schizophrenia during follow-up (49,582,279 person-years). The adjusted hazard ratio for diabetes was 3.07 (95% confidence interval [CI], 1.71-5.41) in antipsychotic-naive schizophrenia compared with the general population. The risk for diabetes after starting antipsychotic treatment was significantly higher (adjusted hazard ratio, 3.64; 95% CI, 1.95-6.82) than the risk in antipsychotic-naive schizophrenia, after adjustment for family history of diabetes and other potential confounders. First-line treatment with either first-generation antipsy-chotics (adjusted hazard ratio, 3.06; 95% CI, 1.32-7.05) or second-generation antipsychotics (adjusted hazard ratio, 3.44; 95% CI, 1.73-6.83) increased the risk for diabetes without a statistically significant difference. Appropriate sensitivity analyses limited to type 2 diabetes corroborated these results. Conclusions: Schizophrenia confers a high endogenous risk for diabetes, and the risk is further increased by both firstgeneration and second-generation antipsychotics. Early detection and effective treatment of diabetes should be an integral part of multidisciplinary management of schizophrenia regardless of antipsychotic drug exposure.

Citation

Rajkumar, A. P., Horsdal, H. T., Wimberley, T., Cohen, D., Mors, O., Børglum, A. D., & Gasse, C. (2017). Endogenous and Antipsychotic-Related Risks for Diabetes Mellitus in Young People With Schizophrenia: A Danish Population-Based Cohort Study. American Journal of Psychiatry, 174(7), 686-694. https://doi.org/10.1176/appi.ajp.2016.16040442

Journal Article Type Article
Acceptance Date Nov 3, 2016
Online Publication Date Jan 20, 2017
Publication Date Jul 1, 2017
Deposit Date Feb 27, 2020
Publicly Available Date Mar 29, 2024
Journal American Journal of Psychiatry
Print ISSN 0002-953X
Electronic ISSN 1535-7228
Publisher Psychiatry Online
Peer Reviewed Peer Reviewed
Volume 174
Issue 7
Pages 686-694
DOI https://doi.org/10.1176/appi.ajp.2016.16040442
Keywords Antipsychotics; Epidemiology; Schizophrenia; Drug Side Effects-Other; Diabetes
Public URL https://nottingham-repository.worktribe.com/output/4045198
Publisher URL https://ajp.psychiatryonline.org/doi/10.1176/appi.ajp.2016.16040442
Additional Information The official published article is available online at https://ajp.psychiatryonline.org/doi/10.1176/appi.ajp.2016.16040442

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