CEACAM5 and neoplasm: As presented in Table 5, the univariate and multivariate analyses conducted in this study revealed that none of the assessed clinicopathological factors, including age, gender, tumor location, grade, initial CEA levels, clinical T and N stages, type of surgery, surgical approach, or the use of adjuvant chemotherapy, demonstrated a statistically significant association with disease-free survival (DFS) or overall survival (OS).