Table 4 Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy among different patients between the 10-beat, 25-beat, 40-beat, and 80-beat analytic programs.

From: Impact of recording length and other arrhythmias on atrial fibrillation detection from wrist photoplethysmogram using smartwatches

PPIs

AUC

AUC 95% CI

Accuracy (%)

Sensitivity (%)

Specificity (%)

PPV (%)

NPV (%)

10

0.9453

0.9437–0.9469

93.65

93.05

95.44

94.06

93.05

25

0.9676

0.9656–0.9697

95.29

96.05

92.50

95.63

94.73

40

0.9719

0.9695–0.9743

95.22

96.57

92.90

95.93

94.14

80

0.9794

0.9761–0.9826

95.93

97.03

93.81

96.82

94.37

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