In univariate logistic regression analysis, age (odds ratio (OR) 1.18; 95% confidence interval (CI), 1.00−1.39; p = 0.049), skin ulcer or fistula (OR 11.69; 95% CI, 1.30−105.03; p = 0.028) and serum CRP level (OR 1.87; 95% CI, 1.14−3.08; p = 0.013) were factors associated with recurrence. This evidence concerns the gene CRP and Skin ulcer.