Fig. 1

Scattergrams of serum procalcitonin levels (A), CRP (B), and ESR (C) in IBD patients with CDI (n = 17) and IBD patients without CDI (n = 103). Graphs (D–F) represent the levels of procalcitonin, CRP, and ESR in IBD patients with flare (n = 30) compared to IBD patients in remission (n = 90), respectively. Error bars represent the median interquartile range (IQR). The student’s t-test was used for data analysis. **, **** and ns denote P-value < 0.01, P-value < 0.0001 and non-significant, respectively