FABP2 and colonic disorder: Neither plasma nor urinary iFABP differed significantly between patients according to their disease location phenotype (plasma iFABP colonic disease: 1129 pg/mL [869, 1515] vs non-colonic disease: 1445 pg/mL [1040, 2419], p = 0.073; urinary iFABP colonic disease: 61 pg/mg [33, 120] vs non-colonic disease: 125 pg/mg [19, 229] p = 0.196), or upper GIT involvement (plasma iFABP upper GIT: 1436 pg/mL [1146, 1941] vs no upper GIT: 1150 pg/mL [873, 1999] p = 0.863; urinary iFABP upper GIT: 95 pg/mg [40, 143] vs no upper GIT: 90 pg/mg [5, 208] p = 0.564).