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. 2019 May 8;16:100194. doi: 10.1016/j.jcte.2019.100194

Table 1.

Baseline characteristic of the prediabetic subjects.

Characteristics Vitamin D2 20,000 IU/week (n = 14) Vitamin D3 15,000 IU/week (n = 15) P value
Age (years) 61 (49–73) 60 (34–79) 0.965
Gender (Female/Male) 12/2 13/2 0.942
Body mass index (kg/m2) 27.5 (23.1–29.4) 27.2 (20.1–32.1) 0.827
Waist circumference (cm) 95 (84.0–110) 93 (71–117) 0.585
Hemoglobin A1c (%) 6.0 (5.0–6.6) 6.1 (5.2–6.5) 0.326
Serum insulin (pmol/L) 70.7 (31.8–10.9.9) 74.6 (15.1–1.0) 0.631
HOMA-IR 1.6 (0.71–2.41) 1.6 (0.34–3.8) 0.631
Serum 25-hydroxyvitamin D (nmol/L) 66.3 (44.9–97.3) 70.7 (31.5–90.4) 0.662
Serum calcium (mmol/L) 2.3 (2.1–2.5) 2.2 (2.1–2.3) 0.517

Data are median (range) or proportion.

HOMA-IR: homeostatic model assessment index of insulin resistance.

Differences in continuous variabels between two groups were assessed by Mann-Whitney U-test.

Differences in gender between two groups were assessed by chi-square test.