Table 3.

Diagnostic performance statistics.

Statistical Test	FFR2D (≤0.80)	2D-QCA (50%DS)
Disease prevalence	31.8 (22.3–42.6)%	31.8 (22.3–42.6)%
Sensitivity	85.7 (67.3–95.9)%	57.1 (37.2–75.5)%
Specificity	93.3 (83.8–98.2)%	71.7 (58.6–82.6)%
Accuracy	90.9 (82.9–96.0)%	67.1 (56.2–76.7)%
Positive predictive value	85.7 (69.7–94.0)%	48.5 (30.8–66.5)%
Negative predictive value	93.3 (84.9–97.2)%	78.2 (64.9–88.2)%
Positive likelihood ratio	13.0 (4.93–33.54)	2.02 (1.21–3.37)
Negative likelihood ratio	0.15 (0.06–0.38)	0.60 (0.38–0.94)
ROC area under the curve	0.95 (0.91–0.99)	0.70 (0.59–0.82)