The second one comprised the parameters significantly associated with PDW in the bivariate analysis (sex, HOMA-IR, HGB, ferritin, ASAT, ALAT, GGT, triglycerides, HDL cholesterol, creatinine, PIIINP, age, and smoking) (R2 = 15.98%; p < 0.0001) and showed that insulin resistance (β = 0.052 [SE = 0.017]; p = 0.0025), GGT (β = 0.001 [SE = 0.001]; p = 0.0194), and ferritin (β = −0.0004 [SE = 0.0002]; p = 0.0374) correlated with PDW. This evidence concerns the gene CYGB and Insulin resistance.