When comparing the difference between patients with CKD (CKD group) and patients without CKD (no CKD group), univariate analysis showed that these two groups were different in variables including age, sex, weight, preoperative GFR value, preoperative contralateral GFR value, β2-microglobulin, tumor size and Immediate postoperative eGFR value. This evidence concerns the gene HLA-G and chronic kidney disease.