RBP4 and diabetes mellitus: The univariate analysis demonstrated that age, diabetes, hypertension, C-peptide levels, uric acid levels, eGFRs, TC levels, triglyceride (TG) levels, ALT levels, bilirubin (t) levels, high sensitivity C-reactive protein (Hs-CRP) levels and INRs were associated with baseline RBP4 levels, whereas the multivariate analysis confirmed that the baseline eGFRs, TC levels and INRs were independently associated with the baseline RBP4 levels.