Similar to NLR, MLR can also predict OS and PFS in mRCC patients with different TKI drugs sunitinib and sorafenib; a low MLR correlated with better OS and PFS in the sorafenib group (P = .0086 and P = .0110, Figure 2(C) and (D)). The same result was observed in the sunitinib group, where low MLR correlated with better OS and PFS in patients with mRCC (P = .0446 and P = .0255, Figure 2(E) and (F)).