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Plasma Vitamin D Concentrations and Dietary Sources among Puerto Ricans Living In the Greater Boston Area
Author(s) -
JamalAllial Aziza,
Tucker Katherine L.
Publication year - 2010
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.24.1_supplement.221.3
Subject(s) - puerto rican , vitamin d and neurology , creatinine , plasma concentration , population , zoology , medicine , endocrinology , chemistry , biology , environmental health , sociology , anthropology
Puerto Ricans are the second largest Hispanic sub‐group in the US; yet there are no available data on this population regarding plasma concentrations or dietary sources of vitamin D. We determined plasma 25‐hydroxy vitamin D concentrations (plasma 25(OH)D) and their associations with key variables, cross‐sectionally, among 1292 Puerto Rican adults, 379 men and 913 women aged 45–75 years. Dietary data from FFQ were used to rank food items by vitamin D intake contribution. The geometric means for plasma 25(OH)D concentrations were 15.8 ± 1.5 ng/ml for men and 16.0 ± 1.5 ng/ml for women. Our results showed that 68.6% of men and 65.5% of women were deficient, based on the cutoff of <20 ng/ml. Multiple linear regression analysis showed that plasma 25(OH)D was significantly lower in winter and spring and higher in summer, relative to the fall (each P <0.0001). Age and plasma albumin were positively associated, while BMI was inversely associated with plasma 25(OH)D ( P <0.05). Smokers had significantly lower plasma 25(OH)D than past smokers ( P =0.003) but not than never smokers. Plasma 25(OH)D did not differ by sex, serum creatinine, supplementation use, or physical activity. Milk products contributed 34% of total vitamin D intake, followed by supplements, 21.5%, and fish products, 18.3%. To our knowledge, this is the first report to document plasma 25(OH)D status in this growing segment of the US population.