Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Mean menstrual blood loss
Systematic review	66 women Data from 1 RCT	Change in blood-loss scores from baseline 3 months with danazol with placebo Absolute results not reported	No direct statistical comparison between danazol and placebo The review reported that danazol significantly improved blood-loss scores from baseline, whereas placebo had no significant effect; however, it is unclear how this result was calculated, as blood-loss scores and significance assessments were not reported
Systematic review	127 women 3 RCTs in this analysis	Mean menstrual blood loss with danazol (200 mg/day continuously for 2–3 months) with placebo Absolute results not reported	WMD –108 mL CI presented graphically	Effect size not calculated	danazol