Role of aspirin in the prevention of preeclampsia in previously hypertensive pregnant women: A Meta-Analysis.

Objective: To determine the role of low-dose aspirin in preventing preeclampsia for previously hypertensive pregnant women.

Methods: The meta-analysis was conducted from February to May 2021 and comprised search on PubMed and Cochrane Library databases for randomised controlled trials consisting of previously hypertensive women aged 18-55 years, aspirin dosage range 60-100mg, and a comparison between aspirin and placebo groups. Duration of intervention till the end of gestation, the dosage of aspirin given, risk ratios or odds ratio with the confidence intervals, and preeclampsia were the main variables recorded.