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ROC analysis results, predictive features, and the AUC of d-dimer (categorized by age and analyzed separately).
| Lab. | Age groups | Mean ± SD | AUC (95% CI) | Cut-off | P | Sensitivity (%) | Specificity (%) |
|---|---|---|---|---|---|---|---|
| d-Dimer (ng/mL) | ≤50 | 36.59 ± 8.70 | 0.886 (0.768–1.000) | 514.00 | .001 | 83.3 | 76.6 |
| >50 | 66.68 ± 10.88 | 0.785 (0.717–0.853) | 930.50 | <.001 | 73.8 | 73.6 |
AUC = area under curve, CI = confidence interval, ROC = receiver operating characteristic, SD = standard deviation.
