Area under the receiver operating curve showing 0 Area under the receiver operating curve showing 0.88 prediction for irritable bowel syndrome versus inflammatory bowel disease using cut-off at 100 μg/g. Area under the receiver operating curve showing 0.88 prediction for irritable bowel syndrome versus inflammatory bowel disease using cut-off at 100 μg/g. A Dhaliwal et al. Frontline Gastroenterol doi:10.1136/flgastro-2013-100420 Copyright © BMJ Publishing Group Ltd & British Society of Gastroenterology. All rights reserved.