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  • Title: Discontinuation and re-initiation of antidepressants during pregnancy: A nationwide cohort study.
    Author: Noh Y, Choe SA, Kim WJ, Shin JY.
    Journal: J Affect Disord; 2022 Feb 01; 298(Pt A):500-507. PubMed ID: 34728291.
    Abstract:
    BACKGROUND: Women tend to discontinue antidepressants during pregnancy. We examined the rate of and factors associated with antidepressant discontinuation and re-initiation during pregnancy. METHODS: We conducted a nationwide cohort study using Korea's healthcare database. The study cohort included women who were aged 15-50 years, gave birth during 2013-2017, had ≥1 depression diagnosis, ≥2 antidepressant prescriptions within 6 months (one within one month of preconception). Cox proportional hazards model was used to evaluate factors associated with antidepressant discontinuation and re-initiation during pregnancy. RESULTS: Among 5207 pregnancies, 4954 (95.1%) discontinued antidepressants during pregnancy, which included 4657 (89.4%) in the first trimester, 1810 (38.9%) of whom re-initiated them during pregnancy or postpartum period. The risk of antidepressant discontinuation increased in women with substance-related disorders (HR 1.17, 95% CI 1.01-1.35), but decreased in women receiving medical aid (0.53, 0.46-0.62) and patients suggestive of severe depression, such as psychiatric comorbidities and long-term antidepressant use before pregnancy. Antidepressant re-initiation occurred frequently in medical aid recipients (1.25, 1.06-1.47), nulliparous women (1.11, 1.01-1.22), and women with severe symptoms. CONCLUSIONS: We found high rates of antidepressant discontinuation and re-initiation during pregnancy. Although women suggestive of severe symptoms were less likely to discontinue antidepressants during pregnancy, they were more likely to re-initiate them during their perinatal period, which warrants more detailed guidelines on perinatal depression.
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