Associations of serum vitamins levels with bone mineral density in the different race-ethnicities US adults

Table 5 The associations of serum vitamins levels with bone mineral density at different sites stratified by age^a

Sites	Serum vitamins	20–49 years (N = 3364)			50–90 years (N = 2600)
Sites	Serum vitamins	β	95% CI	P	β	95% CI	P
Femur neck
	Serum folate	−0.00020	− 0.00072-0.00032	0.445	0.00018	0.00007–0.00028	0.022
	Serum vitamin A	0.00252	−0.00666-0.01170	0.590	0.00834	0.00026–0.01642	0.043
	Serum vitamin B12	−0.00001	−0.00004-0.00003	0.744	0.00002	−0.00001-0.00004	0.304
	Serum vitamin C	0.00032	0.00011–0.00054	0.003	0.00013	0.00006–0.00022	0.019
	Serum vitamin E	−0.00097	− 0.00154-0.00040	0.101	0.00009	−0.00028-0.00045	0.639
Total region
	Serum folate	−0.00005	− 0.00055-0.00045	0.836	0.00013	0.00004–0.00023	0.041
	Serum vitamin A	0.00724	−0.00165-0.01612	0.111	0.00913	0.00032–0.01793	0.042
	Serum vitamin B12	−0.00001	− 0.00003-0.00003	0.923	0.00003	−0.00001-0.00007	0.062
	Serum vitamin C	0.00026	0.00005–0.00047	0.013	0.00023	0.00003–0.00044	0.025
	Serum vitamin E	−0.00023	−0.00079-0.00032	0.411	0.00019	−0.00021-0.00059	0.358

^aIn all sites, sex, body mass index, years of school completed, race, ethnicity, living regions, smoking, alcohol consumption, physical activity, history of hypertension, history of diabetes, history of fracture, and sample design weights were adjusted

ISSN: 1471-2474