Fig. 2

Pairwise meta-analysis results of the primary outcomes. (A) Forest plot of metformin vs. control and metformin vs. myoinositol for clinical pregnancy (B) Forest plot of metformin vs. control for the risk of live birth (C) Forest plot of metformin vs. control and metformin vs. myoinositol for the risk of abortion (D) Forest plot of metformin vs. control for the risk of OHSS. OHSS: ovarian hyperstimulation syndrome; OR: odds ratio