No significant difference in albumin, C-reactive protein, blood urea nitrogen, creatinine, calcium (Ca), phosphorus, alkaline phosphatase, aspartate aminotransferase, alanine aminotransferase, iron, serum iron binding capacity, ferritin, hemoglobin, dialysis adequacy dose (Kt/V), potassium (K+), pre-HD K+, post-HD K+, and parathormone (PTH) values was observed between patients with IBS and those without (P = 0.077, 0.516, 0.053, 0.085, 0.148, 0.067, 0.411, 0.711, 0.691, 0.829, 0.192, 0.841, 0.819, 0.373, 0.955, 0.242, 0.992, and 0.602, respectively) (Table 3). This evidence concerns the gene CRP and irritable bowel syndrome.