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The vitamin D status of East Indian Punjabi immigrants to Canada

Published online by Cambridge University Press:  09 March 2007

R. S. Gibson
Affiliation:
Applied Human Nutrition, Department of Family Studies, University of Guelph, Guelph, Ontario N1G 2W1, Canada
G. S. Bindra
Affiliation:
Applied Human Nutrition, Department of Family Studies, University of Guelph, Guelph, Ontario N1G 2W1, Canada
P. Nizan
Affiliation:
Department of Nutritional Sciences, University of Guelph, Guelph, Ontario N1G 2W1, Canada
H. H. Draper
Affiliation:
Department of Nutritional Sciences, University of Guelph, Guelph, Ontario N1G 2W1, Canada
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Abstract

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1. Serum 25-hydroxyvitamin D (25-OHD), calcium and alkaline phosphatase (EC 3.1.3.1) levels and vitamin D intakes (from 3 d weighed dietary records) were determined in a cohort of fifty-nine male East Indian Punjabi immigrants (37.7 (SD 10.5) years) and fifty-four females (33.3 (SD 7.4) years).

2. Females had somewhat lower mean serum 25-OHD levels (12.3 (SD 5.0) v. 14.2 (SD 5.1) ng/ml, P < 0.05) and serum Ca levels (88 (SD 8) v. 91 (SD 6) mg/l) than males (P < 0.05) whereas serum alkaline phosphatase values (males 167 (SD 63), females 169 (SD 43) IU/l) and dietary vitamin D intakes (males 3.5 (SD 1.8), females 3.3 (SD 2.0) μg/d) were similar.

3. 22% Of the females and 12% of the males had serum 25-OHD levels below 9.0 ng/ml but none had serum 25-OHD levels within the range associated with clinically overt disease.

4. In the males, serum 25-OHD levels were negatively correlated with dietary fibre intakes (g/d; r–0.29; P < 0.05).

5. Multiple-regression analysis indicated that log serum 25-OHD levels were not related to dietary vitamin D intakes. Instead they were associated with sex and dietary fibre intakes (g/MJ) (F 3.71; P = 0.03). These two variables explained 8% of the variance.

Type
Clinical and Human Nutrition papers
Copyright
Copyright © The Nutrition Society 1987

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