Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Menstrual blood loss
Systematic review	38 women Data from 1 RCT	Mean menstrual blood loss with oral contraceptive with danazol Absolute results not reported	WMD +19.3 mL 95% CI –24.47 mL to +63.01 mL		Not significant