Comparison 5. Metformin and laparoscopic ovarian drilling versus laparoscopic ovarian drilling alone.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Live birth rate	1	42	Odds Ratio (M‐H, Fixed, 95% CI)	2.13 [0.51, 8.77]
2 Clinical pregnancy rate	1	42	Odds Ratio (M‐H, Fixed, 95% CI)	3.19 [0.79, 12.80]
3 Miscarriage rate per woman	1	42	Odds Ratio (M‐H, Fixed, 95% CI)	5.51 [0.25, 122.08]
4 Sensitivity analysis: miscarriage rate per pregnancy	1	13	Odds Ratio (M‐H, Fixed, 95% CI)	3.0 [0.12, 77.64]