CRP and Crohn disease: In addition, Bokemeyer [20] conducted a prospective trial on 136 patients with IBD (UC: 70, CD: 66) and reported that 19 patients (14%) showed amylase or lipase elevation without abdominal symptoms, and amylase or lipase levels were not correlated with Crohn’s Disease Activity Index (CDAI), Clinical Activity Index (CAI), or C-reactive protein (CRP) levels.