It is very uncertain whether IVF changes live birth per woman randomised compared with expectant management (very low certainty).
IVF showed no clear difference in live birth rate per woman randomised compared with IUI + ovarian stimulation with gonadotropins or CC (low certainty).
IVF may leads to higher live birth rate per woman randomised compared with unstimulated IUI (low certainty).
IVF showed no clear difference in live birth rate per couple (all cycles) compared with IUI (low certainty).
Natural cycle IVF showed no clear difference in live birth per woman compared with standard IVF (moderate certainty).