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. 2017 Jul 12;2017(7):CD011109. doi: 10.1002/14651858.CD011109.pub2

Comparison 1. Immediate probing vs observation/deferred probing.

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
1 Treatment success at 18 months of age 1   Risk Ratio (M‐H, Fixed, 95% CI) Subtotals only
1.1 Eyes of participants with unilateral NLDO 1 146 Risk Ratio (M‐H, Fixed, 95% CI) 1.13 [0.99, 1.28]
1.2 Eyes of participants with bilateral NLDO 1 108 Risk Ratio (M‐H, Fixed, 95% CI) 0.86 [0.70, 1.06]