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

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

Sites Serum vitamins 20–49 years (N = 3364) 50–90 years (N = 2600)
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
  1. 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
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