The CONUT is a nutritional assessment method with high concordance with the Subjective Global Assessment, which scores values obtained from blood biochemical tests (Alb, total lymphocyte count, and total cholesterol) to classify patients into four categories, i.e., 0-1 point (normal), 2-4 points (mild malnutrition), 5-8 points (moderate malnutrition), and ≥9 points (severe malnutrition) [23]. Here, ALB is linked to nutritional deficiency disease.