This result was similar to that from a Greek multicenter study reported by Katsinelos et al.[16] Being inflammatory markers, ESR and CRP play important role in diagnosis and treatment of inflammatory diseases, such as inflammatory bowel disease (IBD), tuberculosis, etc.[29,30] Studies have demonstrated that CRP might be useful for evaluating activity of CD.[31–33] About half of CAP patients (32/69 = 46.38%) in this study were diagnosed as the inflammatory diseases. Here, CRP is linked to inflammatory bowel disease.