The generalized linear model presented that TG was significantly higher in the subgroup with ferritin ≥ 300.0 ng/mL than those in subgroups with lower levels (P < 0.05), after full adjustment of demographic characteristics, dietary factors, lifestyles, and clinic biomarkers (including blood pressure, diabetes, insulin, blood glucose, insulin injection, antidiabetic drugs treatment, uric acid, urea, apolipoprotein A-1, creatinine, apolipoprotein B, and lipoprotein). The gene discussed is APOB; the disease is diabetes mellitus.