Table 1: Baseline characteristics of participants prior to vitamin D repletion treatments.

Characteristic Treatment P-value
4000 IU (n = 50) 6000 IU (n = 25)
25(OH)D (ng/ml) 22.25 ± 7.19 23.74 ± 5.09 0.302
FGP (mg/dl) 188.76 ± 87.19 168.16 ± 55.94 0.220
Age (years) 54.76 ± 8.56 54.17 ± 10.99 0.999
Gender (Female %) 48% 52% 0.809
Years with T2D 6.48 ± 5.18 5.48 ± 5.93 0.478
Smoking (yes %) 10% 28% 0.091
BMI (kg/m2) 34.72 ± 6.98 30.74 ± 4.93 0.013
Total Cholesterol (mg/dl) 213.08 ± 42.30 193.88 ± 41.03 0.065
Triglycerides (mg/dl) 182.98 ± 110.11 201.44 ± 91.35 0.445
LDL cholesterol (mg/dl) 128.34 ± 40.54 115.56 ± 34.53 0.160
HDL cholesterol (mg/dl) 50.64 ± 12.20 42.44 ± 10.40 0.004
Vitamin D intake (IU/day) 316.82 ± 251.70 301.97 ± 225.49 0.797
Sun exposure score 20.06 ± 14.92 18.68 ± 15.52 0.715
Upper arm skin color 58.67 ± 9.54 62.09 ± 5.65 0.056
Forearm skin color 54.82 ± 8.51 54.37 ± 4.37 0.099
Lipid lowering meds 64% 68% 0.215

Continues variables are presented as mean ± SD and categorical variables as %.

25(OH)D: serum vitamin D; FPG: fasting plasma glucose; T2D: type 2 diabetes;

BMI: body mass index; LDL: low density lipoprotein; HDL: high density lipoprotein.