Comparison 30.

Time elapsed since intercourse in Yuzpe

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 ≤ 24 h vs > 24‐48 h	3	1527	Risk Ratio (M‐H, Fixed, 95% CI)	0.47 [0.26, 0.88]
2 ≤ 24 h vs > 48‐72 h	2	863	Risk Ratio (M‐H, Fixed, 95% CI)	0.41 [0.18, 0.89]
3 > 24‐48 h vs > 48‐72 h	2	857	Risk Ratio (M‐H, Fixed, 95% CI)	0.72 [0.37, 1.39]