Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Ongoing pregnancy rate by natural conception
RCT	446 women with tubal pregnancy scheduled for surgery (tubal pregnancy confirmed during surgery; all women had healthy contralateral fallopian tube)	Cumulative ongoing pregnancy rate by natural conception 36 months 61% with salpingotomy 56% with salpingectomy Absolute results reported graphically	Fecundity rate ratio (FRR) 1.06 95% CI 0.81 to 1.38 P = 0.678		Not significant