TABLE 2.

Criterion values and coordinates of the ROC curve

Criterion	Sensitivity (%)	Specificity (%)	Positive predictive value	Negative predictive value
≥3.2	100.00 (80.3–100.0)	0.00 (0.0–3.7)	14.5
>11.4	100.00 (80.3–100.0)	9.00 (4.2–16.4)	15.7	100
>11.8	94.12 (71.2–99.0)	9.00 (4.2–16.4)	15.0	90.0
>17.3	94.12 (71.2–99.0)	53.00 (42.8–63.1)	25.4	98.1
>17.5	88.24 (63.5–98.2)	55.00 (44.7–65.0)	25.0	96.5
>34.0*	88.24 (63.5–98.2)	99.00 (94.5–99.8)	93.7	98.0
>34.7	82.35 (56.6–96.0)	99.00 (94.5–99.8)	93.3	97.1
>35.2	82.35 (56.6–96.0)	100.0 (96.3–100.0)	100.0	97.1
>98.4	0.00 (0.0–19.7)	100.0 (96.3–100.0)		85.5

Data in parentheses are 95% CI.

^*Cutoff value for positivity.