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. 2012 Feb 15;2012(2):CD003431. doi: 10.1002/14651858.CD003431.pub3

Comparison 2. GTN or IDN versus sphincterotomy.

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
1 NON ‐ Healing of Fissure (persistence or recurrence_ 7 407 Odds Ratio (M‐H, Fixed, 95% CI) 7.49 [4.29, 13.07]
2 Minor Incontinence 7 384 Odds Ratio (M‐H, Fixed, 95% CI) 0.51 [0.22, 1.16]
3 Headache 7 381 Odds Ratio (M‐H, Fixed, 95% CI) 29.06 [10.30, 82.04]