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. 2018 Feb 12;2018(2):CD004121. doi: 10.1002/14651858.CD004121.pub4

Comparison 1. Progression of CIN.

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
1 Progression of CIN to higher grade of CIN 1 25 Risk Ratio (M‐H, Fixed, 95% CI) 0.54 [0.06, 5.24]