In multivariable logistic regression analysis adjusted for age, sex, weight, height, SFA, VFA, comorbidities [DM (%), HTN (%)], corrected Ca (Ca), phosphorous (P), intact PTH, vitamin D deficiency (%), PNI score, total cholesterol, and CRP (Model 2), the odds ratios (ORs) and confidence intervals (CIs) remained statistically significant: moderate SMA group OR = 7.56 (95% CI 1.07–53.46, p = 0.028), low SMA group OR = 8.25 (95% CI 1.10–61.91, p = 0.040), and very low SMA group OR = 30.59 (95% CI 2.42–387.31, p = 0.008), as shown in Table 5. The gene discussed is CRP; the disease is vitamin D deficiency.