Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Mean menstrual blood loss
Systematic review	187 women Data from 1 RCT	Proportion of women with reduction in menstrual blood loss 4 months 77/93 (83%) with endometrial resection 29/93 (31%) with oral drugs	RR 2.66 95% CI 1.94 to 3.64	Moderate effect size	endometrial resection
Systematic review	187 women Data from 1 RCT	Proportion of women with reduction in menstrual blood loss 5 years with endometrial resection with oral drugs Absolute results not reported	Reported as non-significant P value not reported		Not significant