Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Adverse effects
Systematic review	39 women randomised Data from 1 RCT	Proportion of women who had a preterm birth 8/12 (67%) with prednisolone plus low-dose aspirin 3/22 (14%) with aspirin alone	RR 4.9 95% CI 1.6 to 15.1	Moderate effect size	aspirin alone
Systematic review	39 women randomised Data from 1 RCT	Mean birth weight 2800 g with prednisolone plus low-dose aspirin 3352 g with aspirin alone	Mean difference in birth weight 552 g 95% CI 1064 g to 39 g	Moderate effect size	aspirin alone