Gonadotrophins showed no clear difference in incidence of multiple pregnancy per woman compared with continued clomiphene citrate (moderate certainty).
Gonadotrophins with anti‐oestrogens showed no clear difference in multiple pregnancy rate per couple compared with gonadotropins alone (low certainty).
Recombinant follicle stimulating hormone showed no clear difference in incidence of multiple pregnancy (per woman) compared with urinary‐derived gonadotrophins (low certainty).
It is very uncertain whether coasting changes multiple pregnancy compared with gonadotrophin‐releasing hormone antagonist (very low certainty).
The review found no eligible studies for this question.
The review found no eligible studies for this question.
Coasting may leads to lower multiple pregnancy compared with no coasting (low certainty).
The review found no eligible studies for this question.
Metformin showed no clear difference in multiple pregnancy rate (per woman) compared with placebo co‐treatment (low certainty).
It is very uncertain whether human menopausal gonadotrophin or highly purified human menopausal… changes incidence of multiple pregnancy (per woman) compared with urinary follicle stimulating hormone (very low certainty).