Vitamin D Intake among Premenopausal Women Living in Jeddah: Food Sources and Relationship to Demographic Factors and Bone Health

Table 5

Logistic regression analysis for association of vitamin D and calcium intake, serum 25(OH) D, and serum PTH with bone mineral density at the lumbar spine for Jeddah premenopausal women.

Variables	Wald	value	OR	95% CI
				Lower	Upper
Vitamin D intake	0.504	0.478	1.000	0.999	1.000
Calcium intake	4.100	0.043	1.002	1.009	1.005
Serum 25(OH) D	0.154	0.695	0.995	0.971	1.019
PTH	0.145	0.703	0.997	0.984	1.011
BMI	6.069	0.014	1.117	1.023	1.219
Energy intake	7.362	0.007	0.997	0.994	0.999
Constant	0.019	0.889	0.775

Wald = Wald chi-square statistic; OR = odds ratio; CI = confidence interval. Significance at the 0.05 level.