In the univariate analysis, age (p < 0.001), BMI (p = 0.018), CEA level (p < 0.001), tumor size (p = 0.045), LVI (absent vs. present, p < 0.001), number of retrieved LNs (p = 0.017), and AJCC stage (I vs. II, p = 0.006; I vs. III, p < 0.001) were significantly associated with OS (Table 2). This evidence concerns the gene CEACAM5 and neoplasm.