Table 5.

Performance of the simple scoring model in the validation datasets (n = 937)

Score	High risk (%)	Sensitivity	Specificity	PPV	NPV	AUROC
≥0	100	100	0	2.8	0	0.50
≥1	90.2	100	10.1	2.8	100	0.55
≥2	81.1	95.8	19.3	3.0	99.4	0.58
≥3	64.2	87.5	36.4	3.5	99.1	0.62
≥4	43.1	79.2	57.8	4.7	99.1	0.72
≥5	30.3	62.5	70.5	5.3	98.6	0.68
≥6	13.6	37.5	87.1	7.1	98.1	0.62
≥7	8.0	25.0	92.4	8.0	97.9	0.59
≥8	3.4	8.3	96.7	6.2	97.6	0.53
≥9	1.5	4.2	98.6	7.1	97.5	0.51

PPV positive predictive value, NPV negative predictive value, AUROC area under the receiver operating characteristic curve