Ophthalmic Corticosteroids in Pregnant Women with Allergic Conjunctivitis and Adverse Neonatal Outcomes: Propensity Score Analyses.

The risks of topical ophthalmic corticosteroids during pregnancy remain unclear. This study investigated the association between exposure to topical ophthalmic corticosteroids during pregnancy and adverse neonatal outcomes. Retrospective, cohort, database study. Pregnant women with allergic conjunctivitis in the JMDC claims database (JMDC, Tokyo, Japan) between 2005 and 2018 were included. Adverse neonatal outcomes (congenital anomalies [CA], preterm birth [PB], low birthweight [LB], and the composite of these 3 outcomes) were compared between mothers who did and did not receive topical ophthalmic corticosteroids during the first trimester. Controls were women who were not prescribed topical ophthalmic corticosteroids during the first trimester. First, propensity scores were calculated with known confounders, including disorders during pregnancy, other chronic comorbidities, and use of antihistamines. Logistic regression was then conducted with propensity score adjustment. A total of 6,847 eligible women were identified of whom 898 (13%) had received topical ophthalmic corticosteroids. CA occurred in 5.5% and 4.9%, respectively; PB in 3.4% and 3.9%, respectively; LB in 5.9% and 7.0%, respectively; and the composite outcome in 11.7% and 11.7% of unexposed and exposed mothers, respectively. Corticosteroid eye drops were not significantly associated with an increase in CA (adjusted odds ratio [aOR], 0.78; 95% confidence interval [CI], 0.54-1.14; P = .20); PB (aOR, 1.23; 95% CI, 0.80-1.88; P = .35); LB (aOR, 1.17; 95% CI, 0.84-1.61; P = .35), or composite outcome (aOR, 0.95; 95% CI, 0.73-1.22; P = .68). The use of topical ophthalmic corticosteroids in pregnant women with allergic conjunctivitis was not associated with any increase in CA, PB, or LB.

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