Malnutrition status assessed by both the MNA and serum albumin level could predict 3-month all-cause mortality after discharge with ORs of 3.519 (95% CI: 1.254–9.872, P = 0.017) and 3.848 (95% CI: 1.465–10.105, P = 0.006), respectively (Tables 2, 3). The gene discussed is ALB; the disease is malnutrition.