Results in Table 2 indicated that pT-stage (P = 0.005), pN-stage (P = 0.043), metastasis (P < 0.001), Fuhrman grade (P = 0.048), sarcomatoid (P = 0.038) and SLC1A5 (P = 0.001) in multivariate analysis still had statistical significance and were determined as independent prognostic factors in ccRCC. Here, SLC1A5 is linked to nonpapillary renal cell carcinoma.