CEACAM5 and neoplasm: Increased age, the presence of symptoms, preoperative CEA level ≥ 5 ng/mL, surgical approach (VATS + VATS), largest tumor size > 2 cm, most advanced pTNM stage (II + III), T2 + T3 stage, and N1 + 2 stage (Figures S11–S17) were associated with shorter RFS.