(9A).

Criterion values and coordinates of the ROC curve

Criterion	Sensitivity	Specificity	+LR	–LR	+PV	–PV
≥2	100.00	0.00	1.00		39.4
>2	100.00	2.33	1.02	0.00	40.0	100.0
>3	96.43	11.63	1.09	0.31	41.5	83.3
>4	89.29	53.49	1.92	0.20	55.6	88.5
>7	89.29	55.81	2.02	0.19	56.8	88.9
>8	82.14	58.14	1.96	0.31	56.1	83.3
>9	78.57	62.79	2.11	0.34	57.9	81.8
>10	64.29	72.09	2.30	0.50	60.0	75.6
>11	57.14	81.40	3.07	0.53	66.7	74.5
>12	39.29	90.70	4.22	0.67	73.3	69.6
>13	32.14	90.70	3.46	0.75	69.2	67.2
>14	28.57	95.35	6.14	0.75	80.0	67.2
>17	14.29	95.35	3.07	0.90	66.7	63.1
>18	3.57	100.00		0.96	100.0	61.4