TABLE 3.
ROC curve for various cut-off levels of the risk score.
| The risk score | Sensitivity (95% CI) | Specificity (95% CI) | DOC |
| −0.230401325 | 0.740 (0.705–0.775) | 0.649 (0.614–0.684) | 0.437 |
| −0.197567209 | 0.720 (0.695–0.755) | 0.665 (0.630–0.700) | 0.437 |
| −0.196784704 | 0.720 (0.695–0.755) | 0.666 (0.631–0.701) | 0.436 (cut-off) |
| −0.174387142 | 0.700 (0.665–0.735) | 0.683 (0.648–0.718) | 0.437 |
| −0.133806071 | 0.680 (0.645–0.715) | 0.703 (0.668–0.738) | 0.437 |
*AUC: 0.714 (95% CI: 0.645–0.783), P = 0.000. DOC, distance on curve equaling square root of (1 − Sen)2 + (1 − Spe)2; AUC, area under curve.