CRP and Behcet disease: The serum dsDNA level was significantly higher in BD patients than that in HC [2290 (1272, 3345) ng/ml vs. 1355 (904.1, 2847) ng/ml, p = 0.0031] (Figure 1A), which was positively correlated with CRP (r2 = 0.5, p = 0.005) (Figure 1B).