The prediction equation was logitP = 1.84 × S1 + 1.137 × S2 + 0.84 × S3 + 0.497 × S4 + 0.603 × S5, while S1 = TGF-β normal high value (0: < 1.011 pg/mL; 1: ≥ 1.011 pg/mL), S2 = ADMA normal high value (0: < 0.019 μmol/L; 1: ≥ 0.019 μmol/L), S3 = diabetes (0:unaffected; 1:affected), S4 = BUN normal high value (0: < 5.9 mmol/L; 1: ≥ 5.9 mmol/L), S5 = elderly (0: < 60 years; 1: ≥ 60 years. The gene discussed is TGFB1; the disease is diabetes mellitus.