Figure 2 Correlation of faecal S100A12 with intestinal inflammation. A histology inflammation score was calculated by combining endoscopic and histological information in Crohn's disease (A) and ulcerative colitis (B). Faecal S100A12 results were lower in patients without proof of inflammation (score 0: Crohn's disease n  =  6, ulcerative colitis n  =  3) than in patients with signs of inflammation (mild inflammation, score 1: Crohn's disease n  =  11, ulcerative colitis n  =  5; moderate inflammation, score 2: Crohn's disease n  =  8, ulcerative colitis n  =  14; severe inflammation, score 3: Crohn's disease n  =  8, ulcerative colitis n  =  6). Box plots indicate the median as well as the 25th and 75th percentile. Error bars indicate the 10th and 90th percentile (**p<0.01; *p<0.05).