Multivariate regression analysis showed that the CONUT score was independently correlated with age (β = 0.025, p = 0.03), diabetes mellitus (β = 0.695, p = 0.009), CRP (β = 0.485, p < 0.0001), and hemoglobin (β = −0.578, p < 0.0001) (Table 2). The gene discussed is CRP; the disease is diabetes mellitus.