Abstract
| Validation of a Simple 0 to 10 Numerical Score (IBD-10) of Patient-reported Inflammatory Bowel Disease Activity for Routine Clinical Use Subramanian S1, Asher R, Weston W, Rimmer M, McConville A, Malin A, Jackson R, Collins P, Probert C, Dibb M, Rhodes JM. Inflamm Bowel Dis. 2016 May 26. [Epub ahead of print] |
| Author information 1*Department of Gastroenterology, Royal Liverpool University Hospital, Liverpool, United Kingdom; †Cancer Research UK, Liverpool Cancer Trials Unit, Liverpool, United Kingdom; and ‡Institute of Translational Medicine, University of Liverpool, Liverpool, United Kingdom. Abstract BACKGROUND: Various physician- and patient-reported instruments exist for quantification of disease activity in inflammatory bowel diseases (IBD) but none are widely used in routine clinical practice. A simple patient-reported outcome measure might help inform clinical decision making. We evaluated a patient-reported 0 to 10 score of IBD activity (IBD-10) by correlation with conventional multicomponent activity indices. METHODS: A single-center prospective cross-sectional study was conducted in ambulant patients with IBD. Patients were asked to verbally rate the control of Crohn's disease (CD) or ulcerative colitis (UC) on a numerical scale from 0 to 10, with 10 indicating perfect control. Disease activity was assessed using Harvey-Bradshaw index for CD and simple clinical colitis activity index for UC. RESULTS: A total of 405 patients were included, of whom 209 (52%) had CD and 196 (48%) had UC. The median age was 41 (interquartile range, 27-55) years. IBD-10 correlated well with Harvey-Bradshaw Index (rs = -0.69, P < 0.001) and simple clinical colitis activity index (rs = -0.79, P < 0.001). An IBD-10 score of ≥7 predicted remission (defined by Harvey-Bradshaw index/simple clinical colitis activity index) with 90% sensitivity (95% confidence interval [CI], 86-94) and 75% specificity (95% CI, 67-82). The discriminatory ability of IBD-10 for remission was better for UC (area under the receiver operating characteristic curve, 0.93; 95% CI, 0.89-0.97) than for CD (area under the receiver operating characteristic curve, 0.86; 95% CI, 0.81-0.91; P = 0.035). An IBD-10 score of <7 correlated with treatment escalation. CONCLUSIONS: The IBD-10 score correlates well with more complex clinical activity indices. Correlation was less strong for CD than for UC, possibly reflecting a weaker link in CD between stool frequency and the patient perspective of disease activity. The IBD-10 score could readily be used in routine clinical practice. |
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