CRP and familial Mediterranean fever: When we compared the FMF patients according to colchicine response, CResistant group had a significantly higher median (IQR) endocan levels than CResponsive group [36.98 ng/ml (97.41) vs. 13.57 ng/ml (27.87), p = 0.007], but there were no differences between in terms of median ESR and CRP levels (p = 0.931 and p = 0.083, respectively) (Table 1).