Fecal calprotectin measurement is a marker of short-term clinical outcome and presence of mucosal healing in patients with inflammatory bowel disease

Figure 3 Optimal threshold fecal calprotectin values for predicting elevated risk of disease flare. A: Receiver operating curve analysis: FC baseline levels accurately predict clinical relapse in IBD patients within 6 mo of follow up. B: Disease relapse survival curves (Kaplan-Meier analysis) of patients with FC levels below and above 261 μg/g at baseline. Patients with FC values above this threshold have a substantial risk of disease flare within 6 mo of follow up. FC: Fecal calprotectin; IBD: Inflammatory bowel disease.