Correlation Between the Crohn's Disease Activity and Harvey–Bradshaw Indices in Assessing Crohn's Disease Severity  Severine Vermeire, Stefan Schreiber, William J. Sandborn, Cécile Dubois, Paul Rutgeerts  Clinical Gastroenterology and Hepatology  Volume 8, Issue 4, Pages 357-363 (April 2010) DOI: 10.1016/j.cgh.2010.01.001 Copyright © 2010 AGA Institute Terms and Conditions

Figure 1 Calculation of positive and negative predictive values for HBI cut point of ≤4 for remission. Clinical Gastroenterology and Hepatology 2010 8, 357-363DOI: (10.1016/j.cgh.2010.01.001) Copyright © 2010 AGA Institute Terms and Conditions

Figure 2 Comparison of the change from baseline in CDAI and HBI scores from PRECiSE 1 and PRECiSE 2. (A) Dashed lines indicate CDAI response with a change in CDAI of ≥100 points and HBI response with a change in HBI score of ≥3 points. The solid line indicates the regression curve. Spearman correlation coefficient, r = 0.878647. (B) Dashed lines indicate CDAI remission at ≤150 points and HBI remission at ≤4 points. The solid line indicates the regression curve. Spearman correlation coefficient, r = 0.813566. Clinical Gastroenterology and Hepatology 2010 8, 357-363DOI: (10.1016/j.cgh.2010.01.001) Copyright © 2010 AGA Institute Terms and Conditions

Figure 3 ROC analysis for A, HBI-CDAI remission, and B, HBI-CDAI response. AUC, area under the curve. Clinical Gastroenterology and Hepatology 2010 8, 357-363DOI: (10.1016/j.cgh.2010.01.001) Copyright © 2010 AGA Institute Terms and Conditions