Association between migraine, migraine subtype, and adverse pregnancy outcomes: A systematic review and meta-analysis
Abstract
INTRODUCTION: Migraine is one of the most prevalent conditions worldwide. This systematic review aimed to evaluate the association between migraine, its subtypes, and adverse pregnancy outcomes.
MATERIAL AND METHODS: Eligible cohort and retrospective case-control studies were included from PubMed and Embase databases from their inception to May 2024. Adverse pregnancy outcomes of interest were preeclampsia, preterm birth, low birthweight, small for gestational age, and placental abruption. Study quality was assessed using the Newcastle-Ottawa Scale. Meta-analyses of the outcomes with their odds ratios (ORs) and adjusted ORs (aOR), including a 95% confidence interval (CI), were performed using RevMan. Outcomes were pooled using random effects models, with separate analyses for cohort and retrospective case-control studies. The protocol was registered with PROSPERO (no. CRD42023404759).
RESULTS: This meta-analysis included 19 studies (11 cohort and 8 retrospective case-control) encompassing 1 420 690 deliveries. Significant associations were observed between migraine and increased risk of preeclampsia (cohort: aOR 1.28 [95% CI: 1.11-1.47], I2 = 0%), (retrospective case-control: aOR 3.4 [95% CI: 1.81-6.4], I2 = 83%) and preterm birth (cohort: aOR 1.30 [95% CI: 1.17-1.44], I2 = 11%). The meta-analyses of adjusted data on low birthweight and small for gestational age were inconsistent with respect to statistical significance (cohort: aOR 1.27 [95% CI: 0.89-1.82], I2 = 36% and…
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