Efficacy of noninvasive evaluations in monitoring inflammatory bowel disease activity: A prospective study in China

Figure 1 Median fecal calprotectin levels in Crohn’s disease, ulcerative colitis, and irritable bowel syndrome patients, illustrated by box plots. The box indicates the lower and upper quartiles, and the horizontal line in the middle of the box is the median. The 95% confidence interval is indicated by the whiskers, and values outside the whiskers are individual outliers. FC: Fecal calprotectin; IBD: Inflammatory bowel disease; CD: Crohn’s disease; UC: Ulcerative colitis; a,b: the sample numbers of fecal calprotectin extreme values in box plot.