Vitamin D deficiency and insufficiency among patients with prostate cancer
Open Access
- 3 September 2009
- journal article
- Published by Wiley in BJU International
- Vol. 104 (7), 909-914
- https://doi.org/10.1111/j.1464-410x.2009.08531.x
Abstract
OBJECTIVE To assess the frequency of vitamin D deficiency among men with prostate cancer, as considerable epidemiological, in vitro, in vivo and clinical data support an association between vitamin D deficiency and prostate cancer outcome. PATIENTS, SUBJECTS AND METHODS The study included 120 ambulatory men with recurrent prostate cancer and 50 with clinically localized prostate cancer who were evaluated and serum samples assayed for 25‐OH vitamin D levels. Then 100 controls (both sexes), matched for age and season of serum sample, were chosen from a prospective serum banking protocol. The relationship between age, body mass index, disease stage, Eastern Cooperative Oncology Group performance status, season and previous therapy on vitamin D status were evaluated using univariate and multivariate analyses. RESULTS The mean 25‐OH vitamin D level was 25.9 ng/mL in those with recurrent disease, 27.5 ng/mL in men with clinically localized prostate cancer and 24.5 ng/mL in controls. The frequency of vitamin D deficiency (P = 0.005) and season of blood sampling (winter/spring; P = 0.01) were associated with vitamin D deficiency in patients with prostate cancer, while age, race, performance status and body mass index were not. CONCLUSIONS Vitamin D deficiency and insufficiency were common among men with prostate cancer and apparently normal controls in the western New York region.Keywords
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