CD4 and non-small cell lung carcinoma: Consistent with the above results, univariate Cox analysis revealed that ypTNM, post‐chemotherapy TIL, naïve CD4+TIL, post‐chemotherapy CD8+TIL, change in CD4+TIL, and naïve CD4+/CD8+TIL ratio were prognostic factors of OS for NCT‐NSCLC (Table 2).