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Blacks not taking mulitvitamins were 5X more likely to be vitamin D insufficient– June 2011

 

Correlates and Prevalence of Insufficient 25-Hydroxyvitamin D Status in Black and White Older Adults: The Health, Aging and Body Composition Study.

J Am Geriatr Soc. 2011 Jun 13. doi: 10.1111/j.1532-5415.2011.03476.x.
Shea MK, Houston DK dhausman at uga.edu, Tooze JA, Davis CC, Johnson MA, Hausman DB, Cauley JA, Bauer DC, Tylavsky F, Harris TB, Kritchevsky SB; for the Health, Aging and Body Composition Study.

  • Department of Internal Medicine, School of Medicine, Wake Forest University, Winston-Salem, North Carolina;
  • Department of Foods and Nutrition, University of Georgia, Athens, Georgia;
  • Division of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania;
  • Department of Medicine, University of California at San Francisco, San Francisco, California; *Department of Preventive Medicine, University of Tennessee, Memphis; and
  • National Institute of Aging, Bethesda, Maryland.


OBJECTIVES: To determine the prevalence and correlates of vitamin D insufficiency in black and white older adults.
DESIGN: Cross-sectional.
SETTING: Health, Aging and Body Composition Study.
PARTICIPANTS Nine hundred seventy-seven black and 1,604 white adults aged 70 to 81.
MEASUREMENTS: Logistic regression and classification and regression tree analysis were used to identify correlates of vitamin D insufficiency (25-hydroxyvitamin D (25(OH)D) <30?ng/mL) separately in blacks and whites.

RESULTS: The prevalence of 25(OH)D insufficiency was 84% in blacks and 57% in whites. Seventy-six percent of blacks and 56% of whites did not take a multivitamin;

  • those who did not take a multivitamin were more likely to be vitamin D insufficient (odds ratio (OR)=5.17 (95% confidence interval (CI)=3.47-7.70) for blacks;
  • OR=2.56, 95% CI=2.05-3.19 for white).

Additional risk factors for vitamin D insufficiency were vitamin D-containing supplement use, female sex, and obesity in blacks; and winter season, low dietary vitamin D intake, obesity, type 2 diabetes mellitus, and female sex in whites.

CONCLUSION: Vitamin D insufficiency was more prevalent in blacks than whites. Not consuming a multivitamin increased the odds of vitamin D insufficiency in blacks and whites. Knowledge of additional risk factors such as dietary intake and comorbid conditions may help identify older adults who are likely to be vitamin D insufficient.

© 2011, Copyright the Authors. Journal compilation © 2011, The American Geriatrics Society.
PMID: 21668915
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Note: People improving their health by taking multivitamins also tend to improve their health with exercise, outdoors, etc.

See also Vitamin D Life

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