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. 2012 Apr 18;2012(4):CD007101. doi: 10.1002/14651858.CD007101.pub2

Comparison 14. Comparison of superior PVs and four‐PVs ablation in free of AF in one year follow‐up.

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
1 Free of atrial fibrillation 1 52 Risk Ratio (M‐H, Fixed, 95% CI) 0.87 [0.58, 1.32]