title: Serum vitamin d status and its relationship to metabolic parameters in patients with type 2 diabetes mellitus.
abstract: The potential relationship between vitamin D (VitD) status and metabolic control in patients with type 2 diabetes mellitus (T2DM) warrants further study. We aimed to evaluate the relationship between the serum 25-hydroxyvitamin D [25(OH)D] level and various parameters in patients with T2DM. We analyzed retrospectively data from 276 Korean patients with T2DM whose serum 25(OH)D level was measured in our hospital. Nondiabetic healthy subjects who visited the hospital for health screening were selected as the control group (Non-DM, n=160). Compared with control subjects, patients with T2DM had a lower serum 25(OH)D level (15.4±0.5 vs. 12.9±0.4 ng/ml, p<0.01). Eleven percent of T2DM patients were VitD "insufficient" (20-29 ng/ml) and 87% of the patients were VitD "deficient" (<20 ng/ml). The serum 25(OH)D level was significantly related to serum fibrinogen, triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), ferritin, the urine albumin creatinine ratio, and hemoglobin A(1C) (HbA1C). In a multivariate logistic regression analysis, high levels of HbA1C, TG, and LDL-C were independently associated with VitD deficiency in T2DM patients. The results of the present study show that the majority of Koreans with T2DM are VitD deficient, and the serum 25(OH)D level in patients with T2DM is related to lipid and glucose parameters. Further studies are required of the relationship of VitD with fibrinogen and other related parameters.
authors.affiliation: Department of Internal Medicine, Jeju National University School of Medicine, Jeju, Korea.
authors.forename: Jung Re
authors.initials: JR
authors.lastname: Yu
authors.forename: Sang Ah
authors.initials: SA
authors.lastname: Lee
authors.forename: Jae-Geun
authors.initials: JG
authors.lastname: Lee
authors.forename: Gil Myeong
authors.initials: GM
authors.lastname: Seong
authors.forename: Seong Joo
authors.initials: SJ
authors.lastname: Ko
authors.forename: Gwanpyo
authors.initials: G
authors.lastname: Koh
authors.forename: Mi-Hee
authors.initials: MH
authors.lastname: Kong
authors.forename: Keun-Young
authors.initials: KY
authors.lastname: Park
authors.forename: Byung-Joon
authors.initials: BJ
authors.lastname: Kim
authors.forename: Dong-Mee
authors.initials: DM
authors.lastname: Lim
authors.forename: Dae Ho
authors.initials: DH
authors.lastname: Lee