Effects of vitamin D supplementation on glucose and lipid metabolism in patients with type 2 diabetes mellitus and risk factors for insulin resistance

Table 3 Analysis of risk factors

Factors	β	Standard error	χ2	P value	OR value	95%CI
						Lower limit	Upper limit
Age	0.257	0.770	0.111	0.739	1.293	0.286	5.851
BMI	2.822	0.961	8.626	0.003b	16.802	2.557	110.430
TG	1.148	0.853	1.808	0.179	3.151	0.591	16.783
HDL-C	-2.68	1.053	6.476	0.011a	0.069	0.009	0.540
25(OH)D3	3.262	0.922	12.517	< 0.001c	26.109	4.285	159.098
2hPG	3.460	0.889	15.137	< 0.001c	31.804	5.567	181.709
FBG	0.751	0.756	0.985	0.321	2.119	0.481	9.329
HbA1c	4.504	0.965	21.762	< 0.001c	90.379	13.622	599.650

^aP < 0.05.

^bP < 0.01.

^cP < 0.001.

BMI: Body mass index; 25(OH)D₃: 25-hydroxyvitamin D₃; 2hPG: 2-h postprandial blood glucose; FBG: Fasting blood glucose; HbA1c: Glycosylated hemoglobin; TG: Triglyceride; HDL-C: High-density lipoprotein-cholesterol.