The multivariate model (Table 3) revealed that frailty may be predicted by increasing age (OR = 1.319, CI: 1.157–1.505), low household income (OR = 0.999, CI: 0.998–1.000), being at risk of malnutrition (OR = 4.551, CI: 1.425–14.532), wasting (low skeletal muscle mass) (OR = 1.439, CI: 1.185–1.748), and high serum CRP level (OR = 1.159, CI: 0.205–0.981). The gene discussed is CRP; the disease is nutritional deficiency disease.