[PHNUTR-L] Vitamin D Depletion Very Common in Patients Seeking Osteoporosis Advice

[Kathrynne Holden]

Colleagues, the following is FYI and does not necessarily reflect my own
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Vitamin D Depletion Very Common in Patients Seeking Osteoporosis Advice
http://www.vitasearch.com/CP/weeklyupdates/

Reference: 	"Prevalence of vitamin D depletion among subjects seeking 
advice on osteoporosis: a five-year cross-sectional study with public 
health implications," Guardia G, Parikh N, et al, Osteoporos Int, 2008; 
19(1): 13-9. (Address: Sudhaker Rao, Bone & Mineral Research Laboratory, 
Henry Ford Hospital, Detroit, MI, USA. E-mail: srao1 at hfhs.org ).

Summary: 	In a cross-sectional study involving 2,924 patients (mean age: 
68.3 years; 90% women; 88% white) seeking osteoporosis advice, vitamin D 
depletion - assessed by measuring levels of 25-hydroxyvitamin D - was 
found to be highly prevalent. The mean 25(OH)D in subjects was 24.6 
ng/ml, and the mean PTH was 48.4 pg/ml. Vitamin D depletion was found in 
72% of subjects, when the cutoff was defined as having 25(OH)D level 
less than 30 ng/mL. When the cutoff was defined as less than 20 ng/ml, 
the prevalence decreased to 32%, and when the cutoff was defined as less 
than 15 ng/ml, the prevalence further decreased to 15%. Cut-off levels 
were stratified by gender, race, and the year of the study over 5 years. 
Regardless of the cut-off level, men and blacks were found to have a 
higher prevalence of vitamin D depletion. An inverse relationship was 
found between 25(OH)D and PTH in all groups of subjects. The authors 
conclude, "The prevalence of vitamin D depletion in patients seeking ad 
vice for osteoporosis is high and did not change over the 5 years of the 
study."
-- 
Kathrynne Holden, MS, RD
"Ask the Parkinson Dietitian"  http://www.parkinson.org/
"Eat well, stay well with Parkinson's disease"
"Parkinson's disease: Guidelines for Medical Nutrition Therapy"
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