- Research Article
- 10.1111/pcn.70054
Risk of major psychiatric disorder after adolescent pregnancy: A nationwide cohort study of 149,870 girls.
- Mar 26, 2026
- Psychiatry and clinical neurosciences
- Tien-Wei Hsu + 8 more +8
Adolescent pregnancy is a global public health concern associated with increased risks of physical health, mental well-being, and social functioning; however, its potential to increase the long-term risk of major psychiatric disorder (MPD) remains underexplored. Between 1996 and 2013, a cohort of 29,974 girls with adolescent pregnancy without MPD before and 1:4 matched controls based on age, family income, residence location, and individual psychiatric comorbidity were enrolled. A Cox regression model was used, adjusted for potential confounders, to estimate the risk of schizophrenia, bipolar disorder, and major depressive disorder (MDD). After adjusting for confounding factors, adolescent pregnancy was associated with significantly increased risks of bipolar disorder (hazard ratio 1.44; 95% confidence interval 1.20-1.72) and MDD (1.88; 1.76-2.00), but not schizophrenia (0.94; 0.73-1.21), compared to the control group. These associations persisted after excluding the first 3 years of follow-up, with elevated risks of bipolar disorder (1.27; 1.05-1.54) and MDD (1.61; 1.50-1.72) among adolescents with pregnancy compared to controls. These results underscore the importance of implementing long-term mental health surveillance strategies for young mothers who experience adolescent pregnancy.
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