Prevalence of vitamin D deficiency and secondary hyperparathyroidism during winter in pre-menopausal Bangladeshi and Somali immigrant and ethnic Finnish women: associations with forearm bone mineral density

Secondary hyperparathyroidism (SHPT) is one of the outcomes of vitamin D deficiency that negatively affects bone metabolism. We studied the ethnic differences in vitamin D status in Finland and its effect on serum intact parathyroid hormone (S-iPTH) concentration and bone traits. The study was done...

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Bibliographic Details
Published in:British journal of nutrition 2012-01, Vol.107 (2), p.277-283
Main Authors: Islam, Md Zahirul, Viljakainen, Heli T., Kärkkäinen, Merja U. M., Saarnio, Elisa, Laitinen, Kalevi, Lamberg-Allardt, Christel
Format: Article
Language:English
Subjects:
25-Hydroxyvitamin D 2 - blood
Adult
Bangladesh - ethnology
Biological and medical sciences
Bone Density
Calcifediol - blood
Cross-Sectional Studies
Dietary Survey and Nutritional Epidemiology
Emigrants and Immigrants
Feeding. Feeding behavior
Female
Finland - epidemiology
Forearm
Fundamental and applied biological sciences. Psychology
Humans
Hyperparathyroidism, Secondary - blood
Hyperparathyroidism, Secondary - epidemiology
Hyperparathyroidism, Secondary - ethnology
Hyperparathyroidism, Secondary - etiology
Menopause
Middle Aged
Minority & ethnic groups
Parathyroid Hormone - blood
Premenopause
Prevalence
Seasons
Severity of Illness Index
Somalia - ethnology
Thyroid diseases
Urban Health - ethnology
Vertebrates: anatomy and physiology, studies on body, several organs or systems
Vitamin D
Vitamin D Deficiency - blood
Vitamin D Deficiency - epidemiology
Vitamin D Deficiency - ethnology
Vitamin D Deficiency - physiopathology
Winter
Women
Young Adult
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Summary:Secondary hyperparathyroidism (SHPT) is one of the outcomes of vitamin D deficiency that negatively affects bone metabolism. We studied the ethnic differences in vitamin D status in Finland and its effect on serum intact parathyroid hormone (S-iPTH) concentration and bone traits. The study was done in the Helsinki area (60°N) during January–February 2008. A total of 143 healthy women (20–48 years of age) from two groups of immigrant women (Bangladeshi, n 34 and Somali, n 48), and a group of ethnic Finnish women (n 61) were studied in a cross-sectional setting. Serum concentrations of 25-hydroxyvitamin D (S-25OHD) and S-iPTH were measured. Peripheral quantitative computed tomography measurements were taken at 4 and 66 % of the forearm length. In all groups, the distribution of S-25OHD was shifted towards the lower limit of the normal range. A high prevalence of vitamin D insufficiency (S-25OHD 65 ng/l) was higher (79·1 %) in Somali women than in Finnish women (16 %). There was a significant association between S-25OHD and S-iPTH (r − 0·49, P 
ISSN:0007-1145
1475-2662
DOI:10.1017/S0007114511002893