cell lung cancer(NSCLC)patients undergoing chemotherapy on prognosis.Methods A total of 50 NSCLC disease-specific survival (P = 0.078). There were statistically significant associations between basal subtype and CD8 expression (P = 0.008), PD-1 expression (P = 0.001), and PD-L1 expression (P = 0.014). Lower CD4/CD8 and increased CD8/FOXP3 ratios (P = 0.047 and P = 0.031, respectively) were also identified in the basal-subtype group.