{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T01:44:58Z","timestamp":1792719898988,"version":"4.5.0"},"reference-count":40,"publisher":"Cambridge University Press (CUP)","issue":"2","license":[{"start":{"date-parts":[[2011,8,9]],"date-time":"2011-08-09T00:00:00Z","timestamp":1312848000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Br J Nutr"],"published-print":{"date-parts":[[2012,1,28]]},"abstract":"<jats:p>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\u00b0N) during January\u2013February 2008. A total of 143 healthy women (20\u201348 years of age) from two groups of immigrant women (Bangladeshi, <jats:italic>n<\/jats:italic> 34 and Somali, <jats:italic>n<\/jats:italic> 48), and a group of ethnic Finnish women (<jats:italic>n<\/jats:italic> 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\u00a0% 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\u00a0&lt;\u00a050\u00a0nmol\/l) was observed (89\u00b76\u00a0%) in the Somali group. The prevalence of SHPT (S-iPTH&gt;65\u00a0ng\/l) was higher (79\u00b71\u00a0%) in Somali women than in Finnish women (16\u00a0%). There was a significant association between S-25OHD and S-iPTH (<jats:italic>r<\/jats:italic>\u00a0\u2212\u00a00\u00b749, <jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00\u00b7001). Ethnicity and S-25OHD together explained 30\u00a0% of the variation in S-iPTH. The total bone mass at all sites of the forearm, fracture load and stress\u2013strain index was higher (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00\u00b7001) in Bangladeshi and Finnish women than in Somali women. The high prevalence of hypovitaminosis D, SHPT and low bone status in Somali women indicates a higher risk of osteoporosis.<\/jats:p>","DOI":"10.1017\/s0007114511002893","type":"journal-article","created":{"date-parts":[[2011,8,9]],"date-time":"2011-08-09T09:33:43Z","timestamp":1312882423000},"page":"277-283","source":"Crossref","is-referenced-by-count":32,"title":["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"],"prefix":"10.1017","volume":"107","author":[{"given":"Md Zahirul","family":"Islam","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heli T.","family":"Viljakainen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Merja U. 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