Comparison 2.

Regression of CIN 2 and 3

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Partial or complete regression of CIN 2 or CIN 3	2	41	Risk Ratio (M‐H, Fixed, 95% CI)	2.35 [1.03, 5.35]
2 Complete regression of CIN 2 or CIN 3	1	25	Risk Ratio (M‐H, Fixed, 95% CI)	2.17 [0.48, 9.76]
3 Partial regression of CIN 2 or CIN 3	1	25	Risk Ratio (M‐H, Fixed, 95% CI)	2.71 [0.64, 11.43]