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WASHINGTON -- A whopping 97% of 78 patients hospitalized for minimal trauma fractures had vitamin D levels of less than 30 ng/mL, Christine Simonelli, M.D., said at an international symposium sponsored by the National Osteoporosis Foundation.
Even the patients who took at least 400 IU of vitamin D had inadequate vitamin D levels, added Dr. Simonelli of HealthEast Medical Research Institute, St. Paul, Minn. More than 90% of 39 patients who took at least 400 IU of vitamin D still had serum vitamin D levels below 30 nanograms per mL.
But there was a significant difference overall in the mean serum vitamin D levels between patients who took at least 400 IU of vitamin D and those who took 400 IU of vitamin D supplementation or less (16.4 ng/mL vs. 11.9 ng/mL).
Patients who took at least 400 IU of vitamin D as a daily supplement
were significantly less likely to have vitamin D levels in the lowest cutoff group--less than 9 ng/mL--than were patients who took less than 400 IU of vitamin D daily.
The mean vitamin D levels were not significantly different based on age, gender, or use of an osteoporosis medication.