Serum 25(OH)D Level and Parathyroid Hormone in Chinese Adult Population: A Cross-Sectional Study in Guiyang Urban Community from Southeast of China

Table 3

25(OH)D concentrations by participant characteristics (𝑛=1510).

Parameter	25(OH)D concentrations
	Male		Female
BMI (Kg/m^2)		0.021		0.004
<18.5	17.6 ± 10.8		16.7 ± 10.0
18.5–23.9	19.9 ± 10.2		20.7 ± 8.7
24–27.9	22.1 ± 9.2		20.1 ± 7.8
≥28	20.1 ± 8.6		19.5 ± 7.6
Waist circumference		0.45		0.78
Normal	20.3 ± 10.2		20.2 ± 8.9
Abnormal	21.2 ± 9.2		20.1 ± 7.9
WHR		0.075		0.043
Normal	20.0 ± 10.7		21.0 ± 9.0
Abnormal	20.9 ± 9.4		19.7 ± 8.3
Education (yr)		<0.001		<0.001
0–6	25.6 ± 7.6		20.1 ± 7.6
7–9	22.7 ± 10.2		21.0 ± 7.8
10–12	20.7 ± 9.0		22.0 ± 8.6
≥13	19.0 ± 9.6		17.6 ± 9.0
Outdoors activity		0.007		0.005
<30 min/day	20.2 ± 9.7		19.9 ± 8.7
30–60 min/day	19.9 ± 9.3		19.1 ± 7.4
≥60 min/day	23.4 ± 9.0		21.7 ± 8.7
Smoking		0.006		0.009
Yes	18.3 ± 9.6		17.8 ± 8.9
No	21.4 ± 9.7		20.0 ± 8.4
Drinking alcohol		0.064		0.078
Yes	21.3 ± 9.4		20.8 ± 8.9
No	22.4 ± 9.4		20.4 ± 8.4
Drinking milk		0.017		0.042
Yes	22.8 ± 10.1		21.2 ± 8.2
No	20.3 ± 9.5		18.6 ± 8.5
Calcium supplementation		0.060		0.009
Yes	23.1 ± 9.8		21.9 ± 8.5
No	20.5 ± 9.7		19.8 ± 8.4
Vitamin D supplementation		0.059		0.054
Yes	23.2 ± 9.5		21.9 ± 7.2
No	20.7 ± 9.7		20.0 ± 8.5

Data are expressed as means ± SD, the comparison between each group was tested by ANOVA or chi-square.