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Table 3 Predictive values for AF recurrence by receiver-operating characteristic curve

From: Late outcome of surgical radiofrequency ablation for persistent valvular atrial fibrillation in China: a single-center study

Variables Best Cutoff Values AUC (95% CI) Sensitivity (%) Specificity (%) Accuracy (%)
AF duration 66.5 mhs 0.653
(0.593 ~ 0.712)
39.7 89.0 55.3
Pre-op BNP 251 pg/ml 0.691
(0.636 ~ 0.746)
60.3 71.4 67.2
Pre-op heart rate 82 bpm 0.842
(0.802 ~ 0.882)
75.1 81.5 75.8
Pre-op LAD 67.9 mm 0.600
(0.540 ~ 0.660)
31.8 91.4 68.7
  1. Best Cut-off value is equal to the biggest Youden index
  2. Youden index = Sensitivity + Specificity-1. AUC, area under the curve