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Hormonal contraceptives and the risk of suicide: a systematic review and meta-analysis
Faustino R Pérez-López1, Gonzalo R Pérez-Roncero2, María T López-Baena2
1Department of Obstetrics and Gynecology, University of Zaragoza, Faculty of Medicine, Zaragoza, Spain; Instituto de Investigaciones Sanitarias de Aragón, Zaragoza, Spain.
Objective:
To assess the effect of hormonal contraceptive use over the risk of suicide.
Method:
Systematic review and meta-analysis of observational studies retrieved from five search engines until September 2019, comparing the use of any hormonal contraceptive versus non-hormonal contraceptive use or no use. Primary outcome was consumed suicide, and secondary outcomes were suicidal attempt and ideation. Random effects meta-analyses with the inverse variance method were used to evaluate the effects of exposure over outcomes. Effect was calculated as risk ratio (RR) with their corresponding 95% confidence interval (CI). Risk of bias was assessed with the Newcastle-Otawa Scale.
Results:
There were no randomized controlled trials concerning suicide and hormonal contraceptive use. Only three cohort studies (n = 184,721 women), that evaluated the primary outcome (consumed suicide), were included in the meta-analysis. Hormonal contraceptive use was associated to a higher risk of consumed suicide (RR = 1.36, 95% CI 1.06 to 1.75, P = 0.015, I2 = 0%). There were no secondary outcomes in at least two cohorts.
Conclusion:
This meta-analysis found a positive association between hormonal contraceptive use and consumed suicides. Prior to their use, populations at suicidal risk should be properly evaluated.
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