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Table 4 ROC curve analysis of risk factors

From: Predicting a decrease in left atrial appendage flow velocity using left atrial diameter and CHA2DS2-VASc score in patients with non-valvular atrial fibrillation

Risk factors

AUC

Cutoff

Sensitivity (%)

Specificity (%)

PPV (%)

NPV (%)

95% CI

P

LAD

0.774

42.5

79

61

68

73

0.740–0.808

< 0.001

CHA2DS2-VASc

0.689

2.5

74

56

62

68

0.651–0.728

< 0.001

LAD + CHA2DS2-VASc

0.733

4.0

70

69

68

72

0.697–0.770

< 0.001

  1. The bold fonts mean p value which has statistical significance
  2. AUC Area under curve, CI Confidence interval. PPV Positive predictive value. NPV Negative predictive value. All other abbreviations are as listed in the footnote of Table 1