I–II (OR = 2.82; 95%CI: 1.65–4.85; p < 0.001), ASA score III versus II (OR = 2.68; 95%CI: 1.25–5.79; p < 0,05), prealbumin level lower than 3.5 g/dL (OR = 18.7; 95%CI: de 10.7–32.9; p < 0.001), and tumour location in the rectum versus right colon (OR = 3.57; 95%CI: 1.87–6.83; p < 0.001). The gene discussed is TTR; the disease is neoplasm.