Univariate analysis identified several variables significantly associated with PFS, including age (P = 0.041), BMI (P = 0.034), ISPS (P < 0.001), tumor size (P = 0.017), TNM stage (P < 0.001), CD3+ T cells (P = 0.045), CD8+ T cells (P < 0.001), and CD19+ B cells (P = 0.037). The gene discussed is CD8A; the disease is neoplasm.