Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Patient satisfaction
Systematic review	Premenopausal women with heavy periods Data from 1 RCT	Patient satisfaction 12 months 148/166 (89%) with laser ablation 140/155 (90%) with transcervical endometrial resection	RR 0.99 95% CI 0.92 to 1.06 P = 0.73		Not significant
Systematic review	Premenopausal women with heavy periods Data from 1 RCT	Patient satisfaction (very/moderately satisfied) 12 months 45/47 (96%) with vaporising electrode ablation 41/44 (93%) with transcervical endometrial resection	RR 1.03 95% CI 0.93 to 1.14 P = 0.60		Not significant
RCT	50 women	Satisfied or very satisfied 2 years 64% with 5-mm rollerball with unmodulated cutting current 68% with 5-mm rollerball with modulated coagulating current Absolute numbers not reported	P = 0.46		Not significant