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[A] ROC curve demonstration of the ability of SUS-CD to predict endoscopic activity defined as SES-CD > 2. By using a cut-off of SUS-CD ≥ 1, a sensitivity of 95.3%, a specificity of 70.2% and an area under the curve of 0.92 are achieved. [B] ROC curve demonstration of the ability of SUS-CD to predict moderate endoscopic activity defined as SES-CD ≥ 7. By using a cut-off of SUS-CD ≥ 3, a sensitivity of 88.5%, a specificity of 69.0% and an area under the curve of 0.88 are achieved.
