Figure 1.

Receiver operator characteristic (ROC) curve showing that the score assessing bowel inflammatory thickening with contrast enhancement in the baseline magnetic resonance enterography (range 0 – 4 points) was predictive for long-term steroid-free remission at week 52 in Crohn’s disease patients treated with anti-TNF antibodies. An optimal cut-off point was ≥ 3, and it allowed to predict with 67% (confidence interval: 52 – 81%) sensitivity and 65% (confidence interval: 39 – 86%) specificity achievement of the primary therapeutic end point of the study (p = 0.01; area under the curve 0.67).