Surgery-related indicators (operation time, blood transfusion, function recovery time, LOS; postoperative complications, nutrition-related indicators (ALB, pre-albumin, transferrin, CRP), immune function, and tumour infiltrative lymphocytes related outcomes (proportion of infiltrative CD4+, CD8+, CD16+, and CD56+ cell subsets in tumour tissue). The gene discussed is CD4; the disease is neoplasm.