Differences were noted in the rates of surgical procedure (p < 0.001), intestinal obstruction (p = 0.009), lymphatic invasion (p < 0.001), venous invasion (p = 0.002), <12 lymph nodes dissected (p = 0.045), and CEA (p = 0.014) between the NAT (n = 80) and non-NAT (n = 441) groups. The gene discussed is CEACAM5; the disease is intestinal obstruction.