Contraception · Oral Contraceptives

Oral contraceptive use and risk of suicidal behavior among young women

Edwards AC, Lönn SL, Crump C, Mościcki EK, Sundquist J, Kendler KS, Sundquist K

Published October 22, 2020 Psychological Medicine, 52(9), 1710-1717
DOI 10.1017/S0033291720003475 PMID 33084550 PMC PMC8917871

Abstract

Background

Oral contraceptive use has been previously associated with an increased risk of suicidal behavior in some, but not all, samples. The use of large, representative, longitudinally-assessed samples may clarify the nature of this potential association.

Methods

We used Swedish national registries to identify women born between 1991 and 1995 (N = 216 702) and determine whether they retrieved prescriptions for oral contraceptives. We used Cox proportional hazards models to test the association between contraceptive use and first observed suicidal event (suicide attempt or death) from age 15 until the end of follow-up in 2014 (maximum age 22.4). We adjusted for covariates, including mental illness and parental history of suicide.

Results

In a crude model, use of combination or progestin-only oral contraceptives was positively associated with suicidal behavior, with hazard ratios (HRs) of 1.73-2.78 after 1 month of use, and 1.25-1.82 after 1 year of use. Accounting for sociodemographic, parental, and psychiatric variables attenuated these associations, and risks declined with increasing duration of use: adjusted HRs ranged from 1.56 to 2.13 1 month beyond the initiation of use, and from 1.19 to 1.48 1 year after initiation of use. HRs were higher among women who ceased use during the observation period.

Conclusions

Young women using oral contraceptives may be at increased risk of suicidal behavior, but risk declines with increased duration of use. Analysis of former users suggests that women susceptible to depression/anxiety are more likely to cease hormonal contraceptive use. Additional studies are necessary to determine whether the observed association is attributable to a causal mechanism.

Topics

Related research

Contraception › Oral Contraceptives › Metabolic Effects
Sara Larsson Lönn, Casey Crump, Eve K. Mościcki, Alexis C Edwards, Kenneth S Kendler, Jan Sundquist, Kristina Sundquist
S Lönn, C Crump, E Mościcki, A Edwards, Ken Kendler, K Kendler, J Sundquist, K Sundquist
PMID 33084550 33084550 DOI 10.1017/S0033291720003475 10.1017/S0033291720003475 Edwards et al. 2020, Edwards 2020

Cite this article

Edwards, A., Lönn, S., Crump, C., Moscicki, E., Sundquist, J., Kendler, K. S., & Kristina, S. (2022). Oral contraceptive use and risk of suicidal behavior among young women. Psychological medicine, 52(9), 1710-1717. https://doi.org/10.1017/S0033291720003475