Comparison 1. 10,000 units hCG priming versus no priming.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Live birth rate	1	82	Odds Ratio (M‐H, Fixed, 95% CI)	0.65 [0.24, 1.74]
1.1 Women with PCOS	1	82	Odds Ratio (M‐H, Fixed, 95% CI)	0.65 [0.24, 1.74]
2 Miscarriage rate	2	282	Odds Ratio (M‐H, Fixed, 95% CI)	0.60 [0.21, 1.72]
2.1 Women with PCOS	1	82	Odds Ratio (M‐H, Fixed, 95% CI)	0.75 [0.24, 2.39]
2.2 Women without PCOS	1	200	Odds Ratio (M‐H, Fixed, 95% CI)	0.20 [0.01, 4.14]
3 Clinical pregnancy rate	2	282	Odds Ratio (M‐H, Fixed, 95% CI)	0.52 [0.26, 1.03]
3.1 Women with PCOS	1	82	Odds Ratio (M‐H, Fixed, 95% CI)	0.6 [0.25, 1.45]
3.2 Women without PCOS	1	200	Odds Ratio (M‐H, Fixed, 95% CI)	0.43 [0.14, 1.27]
4 Number of oocytes retrieved	1	200	Mean Difference (IV, Fixed, 95% CI)	0.0 [‐1.15, 1.15]