Variability of Faecal Calprotectin in Inflammatory Bowel Disease Patients: An Observational Case-control Study

Autor: Denis Franchimont, Patrick Stordeur, Fabian Brohet, Leila Amininejad, Julie Smet, Jade Ku, A Cremer, Jacques Devière, Marie Rose Bouvry, Claire Liefferinckx, André Van Gossum
Rok vydání: 2019
Předmět:
Zdroj: Journal of Crohn's and Colitis, 13 (11
ISSN: 1876-4479
Popis: Background and Aims: Several factors have been reported to affect faecal calprotectin [FC] values, and significant variation in FC concentrations has been observed in inflammatory bowel disease [IBD] patients. We aimed to evaluate FC variability in IBD patients, and to assess the robustness of a single stool punch. Methods: This is a single-centre observational case-control study. Disease activity was assessed using endoscopic and clinical activity scores, as well as C-reactive protein levels. Stool samples were collected twice within a 1 to 6 days interval, and FC was measured on punches and homogenates by fluorometric enzyme immunocapture assay. Results: In all, 260 stool samples were collected from 120 patients. Intrastool variability was low, with an intraclass correlation coefficient for single measures between three punches from a single stool sample of 0.91, and median coefficient of variation [CV] of 17%. CV of two stool samples a few days apart [intra-individual variability] were significantly higher [p
SCOPUS: ar.j
info:eu-repo/semantics/published
Databáze: OpenAIRE
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