Fecal calprotectin in predicting relapse of inflammatory bowel diseases: A meta-analysis of prospective studies
Version of Record online: 11 JAN 2012
Copyright © 2012 Crohn's & Colitis Foundation of America, Inc.
Inflammatory Bowel Diseases
Volume 18, Issue 10, pages 1894–1899, October 2012
How to Cite
Mao, R., Xiao, Y.-l., Gao, X., Chen, B.-l., He, Y., Yang, L., Hu, P.-j. and Chen, M.-h. (2012), Fecal calprotectin in predicting relapse of inflammatory bowel diseases: A meta-analysis of prospective studies. Inflamm Bowel Dis, 18: 1894–1899. doi: 10.1002/ibd.22861
- Issue online: 13 SEP 2012
- Version of Record online: 11 JAN 2012
- Manuscript Accepted: 29 NOV 2011
- Manuscript Received: 18 NOV 2011
- Inflammatory bowel disease;
- Crohn's disease;
- ulcerative colitis;
- fecal calprotectin
Fecal calprotectin (FC) is a relatively new marker of intestinal inflammation. Recently, many studies have extended its role in predicting relapse of quiescent inflammatory bowel disease (IBD), but the reported results have been inconsistent. We aimed to perform a meta-analysis of the predictive capacity of FC in IBD relapse.
We systematically searched the Medline, Web of Science, Cochrane Library, and EMBASE databases for prospective studies that used FC concentrations at remission in predicting relapse of Crohn's disease (CD) and ulcerative colitis (UC). Pooled sensitivity, specificity, and other diagnostic indices were evaluated.
A total of 672 IBD patients (318 UC and 354 CD) from six different studies were analyzed. The pooled sensitivity and specificity of FC to predict relapse of quiescent IBD was 78% (95% confidence interval [CI]: 72–83) and 73% (95% CI: 68–77), respectively. The area under the summary receiver-operating characteristic (sROC) curve was 0.83 and the diagnostic odds ratio was 10.31 (95% CI: 5.05–21.06). The capacity of FC to predict relapse was comparable between UC and CD. In CD patients the predictive value of FC in isolated small bowel CD was not assessed due to insufficiency of available data. Compared with all enrolled CD patients, FC appeared to be more accurate in ileocolonic and colonic CD.
As a simple and noninvasive marker, FC is useful to predict relapse in quiescent IBD patients. (Inflamm Bowel Dis 2012)