{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,2]],"date-time":"2026-11-02T16:51:01Z","timestamp":1793638261459,"version":"4.5.1"},"reference-count":48,"publisher":"Oxford University Press (OUP)","issue":"4","license":[{"start":{"date-parts":[[2009,4,1]],"date-time":"2009-04-01T00:00:00Z","timestamp":1238544000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2009,4,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Poor vitamin D status is common in the elderly and is associated with bone loss and fractures. The aim was to assess worldwide vitamin D status in postmenopausal women with osteoporosis according to latitude and economic status, in relation to parathyroid function, bone turnover markers, and BMD. The study was performed in 7441 postmenopausal women from 29 countries participating in a clinical trial on bazedoxifene (selective estrogen receptor modulator), with BMD T-score at the femoral neck or lumbar spine \u2264 \u22122.5 or one to five mild or moderate vertebral fractures. Serum 25(OH)D, PTH, alkaline phosphatase (ALP), bone turnover markers osteocalcin (OC) and C-terminal cross-linked telopeptides of type I collagen (CTX), and BMD of the lumbar spine, total hip, femoral neck, and trochanter were measured. The mean serum 25(OH)D level was 61.2 \u00b1 22.4 nM. The prevalence of 25(OH)D &amp;lt;25, 25\u201350, 50\u201375, and &amp;gt;75 nM was 5.9%, 29.4%, 43.5%, and 21.2%, respectively, in winter and 3.0%, 22.2%, 47.2%, and 27.5% in summer. Worldwide, a negative correlation between 25(OH)D and latitude was observed. With increasing 25(OH)D categories of &amp;lt;25, 25\u201350, 50\u201375, and &amp;gt;75 nM, mean PTH, OC, and CTX were decreasing (p &amp;lt; 0.001), whereas BMD of all sites was increasing (p &amp;lt; 0.001). A threshold in the positive relationship between 25(OH)D and different BMD parameters was visible at a 25(OH)D level of 50 nM. Our study showed a high prevalence of low 25(OH)D in postmenopausal women with osteoporosis worldwide. Along with latitude, affluence seems to be an important factor for serum 25(OH)D level, especially in Europe, where it is strongly correlated with latitude.<\/jats:p>","DOI":"10.1359\/jbmr.081209","type":"journal-article","created":{"date-parts":[[2008,12,2]],"date-time":"2008-12-02T17:32:07Z","timestamp":1228239127000},"page":"693-701","source":"Crossref","is-referenced-by-count":200,"title":["Vitamin D Status, Parathyroid Function, Bone Turnover, and BMD in Postmenopausal Women With Osteoporosis: Global Perspective"],"prefix":"10.1093","volume":"24","author":[{"given":"Natalia O","family":"Kuchuk","sequence":"first","affiliation":[{"name":"Department of Endocrinology, VU University Medical Center, Amsterdam, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Natasja M","family":"van Schoor","sequence":"additional","affiliation":[{"name":"EMGO Institute, VU University Medical Center, Amsterdam, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Saskia M","family":"Pluijm","sequence":"additional","affiliation":[{"name":"Department of Public Health, Erasmus Medical Center, Rotterdam, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arkadi","family":"Chines","sequence":"additional","affiliation":[{"name":"Wyeth Research, Philadelphia, Pennsylvania, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul","family":"Lips","sequence":"additional","affiliation":[{"name":"EMGO Institute, VU University Medical Center, Amsterdam, The Netherlands"},{"name":"Department of Endocrinology, VU University Medical Center, Amsterdam, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2009,12,4]]},"reference":[{"key":"2024020320022388600_bib1","doi-asserted-by":"crossref","first-page":"245","DOI":"10.1111\/j.1365-2796.2006.01685.x","article-title":"The prevalence of vitamin D inadequacy amongst women with osteoporosis: An international epidemiological investigation","volume":"260","author":"Lips","year":"2006","journal-title":"J Intern Med"},{"key":"2024020320022388600_bib2","doi-asserted-by":"crossref","first-page":"477","DOI":"10.1210\/edrv.22.4.0437","article-title":"Vitamin D deficiency and secondary hyperparathyroidism in the elderly: Consequences for bone loss and fractures and therapeutic implications","volume":"22","author":"Lips","year":"2001","journal-title":"Endocr Rev"},{"key":"2024020320022388600_bib3","doi-asserted-by":"crossref","first-page":"2980","DOI":"10.1210\/jc.2006-0510","article-title":"Vitamin D status in relation to one-year risk of recurrent falling in older men and women","volume":"91","author":"Snijder","year":"2006","journal-title":"J Clin Endocrinol Metab"},{"key":"2024020320022388600_bib4","doi-asserted-by":"crossref","first-page":"2017","DOI":"10.1210\/jc.2007-0298","article-title":"The role of vitamin D and calcium in type 2 diabetes. 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