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Journal Article

Citation

Chang Z, Quinn PD, O'Reilly L, Sjölander A, Hur K, Gibbons RD, Larsson H, D'Onofrio BM. Biol. Psychiatry 2019; ePub(ePub): ePub.

Affiliation

Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; Department of Psychological and Brain Sciences, Indiana University, Bloomington, Indiana.

Copyright

(Copyright © 2019, Elsevier Publishing)

DOI

10.1016/j.biopsych.2019.12.003

PMID

31987492

Abstract

BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) is a risk factor for suicidal behavior, but the effect of ADHD medication on suicidal behavior remains unclear. This study aimed to examine the associations between medication treatment for ADHD and risk of suicide attempts.

METHODS: We identified a large cohort of patients with ADHD (N = 3,874,728, 47.8% female patients) using data from commercial health care claims from 2005 to 2014 in the United States. We used population-level and within-individual analyses to compare risk of suicide attempts during months when individuals received prescribed stimulant or nonstimulant medication relative to months when they did not receive medication.

RESULTS: In both population-level and within-individual analyses, ADHD medication was associated with lower odds of suicide attempts (odds ratio [OR], 0.69; 95% confidence interval [CI], 0.66-0.73; and OR, 0.61; 95% CI, 0.57-0.66, respectively). Similar reductions were found in children to middle-aged adults and in clinically relevant subgroups, including patients with ADHD with preexisting depression or substance use disorder. The reduction was mainly seen for stimulant medication (OR, 0.72; 95% CI, 0.66-0.77); nonstimulant medication was not associated with statistically significant changes in risk of suicide attempts (OR, 0.94; 95% CI, 0.74-1.19). Sensitivity analyses assessing the influence of different exposure definitions, different outcome definitions, subsets of the cohort, and different analytic approaches provided comparable results.

CONCLUSIONS: Stimulant medication was associated with a reduced risk of suicide attempts in patients with ADHD, and nonstimulant medication is unlikely to increase the risk of suicide attempts.

Copyright © 2019 Society of Biological Psychiatry. Published by Elsevier Inc. All rights reserved.


Language: en

Keywords

ADHD; ADHD medication; Cohort study; Real-world evidence; Stimulants; Suicide attempt

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