In the multiple logistic regression analysis, adjusted for sex, age, ethnicity, CURB-65 score, albumin levels, eGFR, diabetes, heart failure, and cerebrovascular disease, hypophosphatemia (Grade 2) (OR = 3.715, 95% CI: 1.013–13.633, p = 0.048) and hyperphosphatemia (OR = 5.221, 95% CI: 2.747–9.924, p < 0.001) were identified as independent correlative factors of in-hospital mortality (Table 6). The gene discussed is ALB; the disease is hypophosphatemia.