Table 3.

Values of Sensitivity, Specificity, PPV and NPV for the Nomogram Scores at Different Cut-off Values

Predicted Probability	Specificity (%)	Sensitivity (%)	Accuracy (%)	PPV (%)	NPV (%)
≥0.05	0.86	0.65	0.86	0.13	0.99
≥0.10	0.95	0.45	0.93	0.20	0.98
≥0.15	0.97	0.38	0.95	0.28	0.98
≥0.20	0.98	0.30	0.96	0.32	0.98
≥0.25	0.99	0.23	0.96	0.37	0.98
≥0.30	0.99	0.19	0.97	0.43	0.98
≥0.35	0.99	0.16	0.97	0.53	0.97
≥0.40	0.99	0.10	0.97	0.63	0.97
≥0.45	0.99	0.07	0.97	0.73	0.97
≥0.50	0.99	0.04	0.97	0.70	0.97

Abbreviations: PPV, Positive predictive value; NPV, Negative predictive value.