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Multicenter Study
. 2009 Apr;94(4):1214-22.
doi: 10.1210/jc.2008-1784. Epub 2009 Jan 27.

Vitamin D deficiency in older men

Eric Orwoll  1 , Carrie M Nielson, Lynn M Marshall, Lori Lambert, Kathleen F Holton, Andrew R Hoffman, Elizabeth Barrett-Connor, James M Shikany, Tien Dam, Jane A Cauley; Osteoporotic Fractures in Men (MrOS) Study Group
Affiliations
Multicenter Study

Vitamin D deficiency in older men

Eric Orwoll et al. J Clin Endocrinol Metab. 2009 Apr.

Abstract

Context: Vitamin D deficiency is not adequately evaluated in older men.

Objective: The aim of the study was to determine the prevalence of vitamin D deficiency and identify risk factors for its occurrence.

Design and setting: We conducted a cross-sectional evaluation of 1606 older men in the general community who were enrolled in the Osteoporotic Fractures in Men Study.

Participants: A randomly selected subcohort of a large population of men from six U.S. communities participated in the study.

Main outcome measures: Serum concentrations of 25-hydroxyvitamin D(2) [25(OH)D(2)] and 25(OH)D(3) were measured using mass spectrometry.

Results: Deficiency [25(OH)D <20 ng/ml] was present in 26%, and insufficiency (<30 ng/ml) was present in 72%. Deficiency was particularly common among men during the winter and spring (especially in the northern communities) and in the oldest and more obese men. For instance, in Caucasian men in winter or spring who were >80 yr old, did not engage in lawn/garden work, and had a body mass index greater than 25 kg/m(2) and vitamin D intake below 400 IU/d, the prevalence of vitamin D deficiency was 86%. 25(OH)D(2) levels were present in a small fraction of men and accounted for a low proportion of total 25(OH)D levels. The use of vitamin D supplements was reported by 58% of men, but supplement use had a small effect on total 25(OH)D levels and, despite supplement use, low levels remained frequent.

Conclusions: Vitamin D deficiency is common in older men and is especially prevalent in obese, sedentary men living at higher latitudes. Use of vitamin D supplements at levels reported here did not result in adequate vitamin D nutrition.

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Figures

Figure 1
Figure 1
A, Vitamin D deficiency and insufficiency by age group for three total 25(OH)D cut points. B, Vitamin D deficiency and insufficiency by BMI category for three total 25(OH)D cut points.
Figure 2
Figure 2
Summer to winter comparison of total 25(OH)D by site.
See this image and copyright information in PMC

Comment in

  • MrOs is D-ficient.
    Holick MF. Holick MF. J Clin Endocrinol Metab. 2009 Apr;94(4):1092-3. doi: 10.1210/jc.2009-0388. J Clin Endocrinol Metab. 2009. PMID: 19349475 No abstract available.

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