FRIDAY, Dec. 16 (HealthDay News) -- People with high serum concentrations of 25-hydroxyvitamin D have improved lung function compared with those having lower concentrations, according to a report in the December issue of Chest.
Peter N. Black, M.B., Ch.B., and Robert Scragg, M.B., B.S., Ph.D., from the University of Auckland, New Zealand, used data from 14,091 subjects aged 20 or older who were enrolled in the Third National Health and Nutrition Examination Survey to examine the relationship between serum vitamin D levels and pulmonary function measured by forced expiratory volume in one second (FEV1) and forced vital capacity (FVC).
Variable analysis showed that mean FEV1 was 126 mL and mean FVC was 172 mL greater in subjects with the highest levels of 25-hydroxyvitamin D compared with those having the lowest levels.
Even after multivariate adjustments, the improvements were still significant, the authors write. "Further studies are necessary to determine whether supplementation with vitamin D is of any benefit in patients with respiratory disease."
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