BACKGROUND: This study was aimed to evaluate the predictive value of fecal calprotectin in @entity1 with @entity31 from @entity1 with @entity1744 ( @entity1744 ). MATERIALS AND METHODS: Between May and October 2013, 88 adult @entity1 , between the age 18 and 65 years with a history of chronic @entity294 of unknown origin were assessed. Standard colonoscopies were performed in all @entity1 to assess @entity31 . Before colonoscopies, they were asked to supply a stool specimen. Fecal calprotectin value was measured using a commercial enzyme-linked immunosorbent assay kit. RESULTS: The mean of age, gender combination, and body mass index were not significantly different between @entity1 with @entity31 or @entity1744 . The duration of disease in @entity31 @entity1 was significantly higher than @entity1744 @entity1 (P < 0.0001). The level of calprotectin in @entity31 @entity1 was significantly higher than @entity1744 @entity1 (265.9 vs 115.8, respectively, P = 0.001). Also, cutoff value >164  g/g with sensitivity and specify of 57 (CI: 41%-71.6%), and 75 (CI: 59.7%-56.8%), respectively, was the best for discrimination between @entity1 with @entity31 and those with @entity1744 . CONCLUSION: Our results show that fecal calprotectin as a noninvasive method, which can be used to identify @entity1 with @entity31 from @entity1744 @entity1 has low sensitivity and specificity.

Fecal calprotectin is a useful marker to diagnose XXXX from @entity1744 .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity294 :: ('MESH:D003967', 'Disease') :: ['diarrhea'] @entity31 :: ('MESH:D003093', 'Disease') :: ['ulcerative colitis'] @entity1744 :: ('MESH:D043183', 'Disease') :: ['irritable bowel syndrome', 'IBS']
@entity31 :: (MESH:D003093,Disease) :: ['ulcerative colitis']
