ALB and diabetes mellitus: There exist obvious positive correlations between 25(OH)D with levels of albumin, creatinine, phosphorus, HDL‐C and LDL‐C (p < .001, p < .001, p = .013, p = .02, p = .002, respectively), and negative associations between 25(OH)D with age, diabetes, alkaline phosphatase level, NLR, PLR, and MLR (p = .002, p = .002, p = .037, p = .001, p = .041, and p < .001, respectively).