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| Statistic | Grade 0 versus 1−3 | Grade 0−1 versus 2−3 |
|---|---|---|
| AUC | 0.815 (0.724−0.886) | 0.876 (0.795−0.934) |
| P value | <0.0001 | <0.0001 |
| Cutoff value (S–1) | 58.7 | 68.06 |
| Sensitivity | 75.0% (57.8−87.9%) | 91.7% (61.5−99.8%) |
| Specificity | 84.1% (72.7−92.1%) | 89.7% (81.3−95.2%) |
Numbers in parentheses are 95% confidence intervals. AUC, area under the ROC curve.
