Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Cyclical vaginal bleeding
Systematic review	733 women with benign gynaecological conditions, mostly fibroids or heavy menstrual bleeding 3 RCTs in this analysis	Ongoing cyclical vaginal bleeding with subtotal hysterectomy with total hysterectomy	OR 11.3 95% CI 4.1 to 31.2	Large effect size	total hysterectomy