IVF showed no clear difference in clinical pregnancy rate per woman randomised compared with IUI + ovarian stimulation with gonadotropins or CC (low certainty).
It is very uncertain whether IVF changes clinical pregnancy rate per woman randomised compared with expectant management (very low certainty).
It is very uncertain whether IVF changes clinical pregnancy rate per woman randomised compared with unstimulated IUI (very low certainty).
It is very uncertain whether adjuvant growth hormone changes clinical pregnancy rate per woman randomised compared with no adjuvant: routine use (very low certainty).
Adjuvant growth hormone may leads to higher clinical pregnancy rate per woman randomised compared with no adjuvant: poor responders (low certainty).
Assisted hatching may leads to higher clinical pregnancy rate per woman randomised compared with no assisted hatching (low certainty).