The malnourished group included categories B and C, i.e., at risk of malnutrition or malnourished in the MNA and moderately or severely malnourished in the SGA; underweight patients (BMI < 18 kg/m2); patients with involuntary weight loss >5%; with albumin levels <3.5 mg/dL; and with anorexia (A/SC ≤ 32; n = 737). The gene discussed is ALB; the disease is malnutrition.