According to the GNRI, compared to the normal-nutrition group, the malnutrition group had lower levels of BMI (20.83 ± 3.66), albumin (38.25 ± 2.32 g/L), total cholesterol (3.88 ± 0.84 mmol/L), higher score of UMSARS-IV (2.45 ± 1.13), lower proportion of history of smoking (15.0%) and drinking (7.5%), lower proportion of hyperlipidemia (5.0%) (all p < 0.05). The gene discussed is ALB; the disease is nutritional deficiency disease.