Table 6.
Sensitivity and Specificity of the Parameters on Evaluating Crohn’s Disease Activity Status by ROC Curve Analysis
| Optimal Threshold | Sensitivity | Specificity | AUC (95% CI) | P value | |
|---|---|---|---|---|---|
| ESR (mm/h) | 19.5 | 71.0% | 72.7% | 0.762 (0.700–0.823) | < 0.01 |
| CRP (mg/L) | 13.6 | 75.0% | 73.7% | 0.758 (0.697–0.819) | < 0.01 |
| PLT (109/L) | 304.5 | 50.6% | 86.9% | 0.702 (0.697–0.764) | < 0.01 |
| HGB (g/L) | 106.8 | 74.4% | 57.7% | 0.703 (0.639–0.767) | < 0.01 |
Abbreviations: ROC, receiver-operating characteristics; AUC, area under the curve; ESR, erythrocyte sedimentation rate; CRP, C-reactive protein; PLT, platelet; HGB, hemoglobin.