• Hsuan-Yu Lin, Fang-Ju Lin, Aaron J Katz, I-Te Wang, and Chung-Hsuen Wu.
• School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei City, Taiwan.
• Mayo Clin. Proc. 2022 Nov 1; 97 (11): 208620962086-2096.

ObjectiveTo assess the association between antipsychotic use in early pregnancy and the risk of maternal and neonatal metabolic complications.MethodsWe conducted a population-based retrospective cohort study (January 1, 2010, to December 31, 2016) using the Health and Welfare Database in Taiwan. Pregnant women (18 to 49 years of age) were grouped as antipsychotic users (ie, received oral antipsychotic monotherapy during the first 20 weeks of pregnancy) and nonusers. Antipsychotic users were further categorized into first-generation antipsychotic and second-generation antipsychotic users. Propensity score methods, including matching and inverse probability of treatment weighting, were used to balance covariates. Conditional logistic regression and Cox proportional hazards models were used to compare risks of maternal (gestational diabetes mellitus, preterm birth) and neonatal (low birth weight [LBW], macrosomia) outcomes.ResultsAntipsychotic users had a notably higher risk of preterm birth compared with nonusers (adjusted HR, 1.29; 95% CI, 1.04 to 1.60), but the risk of gestational diabetes mellitus (HR, 1.21; 95% CI, 0.94 to 1.56), LBW (odds ratio [OR], 1.07; 95% CI, 0.84 to 1.37), and macrosomia (OR, 1.36; 95% CI, 0.63 to 2.92) did not differ between the two groups. Among women who received antipsychotics, the odds of LBW were significantly higher in second-generation antipsychotic users compared with first-generation antipsychotic users (adjusted OR, 1.32; 95% CI, 1.04 to 1.68).ConclusionThis study found that using antipsychotics in early pregnancy did not result in a greater risk of metabolic complications both for mothers and newborns. For women requiring treatment with antipsychotics during pregnancy, they should be monitored for the risk of preterm birth and low infant birth weight.Copyright © 2022 Mayo Foundation for Medical Education and Research. Published by Elsevier Inc. All rights reserved.

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