{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T09:03:26Z","timestamp":1792659806763,"version":"4.5.0"},"reference-count":11,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2011,1,7]],"date-time":"2011-01-07T00:00:00Z","timestamp":1294358400000},"content-version":"vor","delay-in-days":6276,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["obgyn.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Acta Obstet Gynecol Scand"],"published-print":{"date-parts":[[1993,11]]},"abstract":"<jats:p>Iron status was assessed by serum (S\u2010) ferritin and hemoglobin (Hb) in a population survey comprising 883 non\u2010gravid Danish women in age cohorts of 35, 45. 55, and 65 years. Premenopausal women (n = 676) had lower S\u2010ferritin, median 42 \u03bcg\/1, than postmenopausal women (n = 207), median 80 \u03bcg\/1 (p&lt;0.0001). Of premenopausal women, 12.1% had S\u2010ferritin \u2264 20 \u03bcg\/1 (i.e. depleted iron stores), and 35.6% S\u2010ferritin of 21\u201340 \u03bcg\/1 (i.e. small iron stores). Corresponding figures in postmenopausal women were 0.5%, and 13.2%. Premenopausal blood donors (n = 88) had lower S\u2010ferritin than non\u2010donors (p&lt;0.001). In premenopausal women, S\u2010ferritin levels were strongly dependent on the duration of menstrual bleeding (p &lt; 0.0001). which in turn was related to the method of contraception. Women (n = 64) using hormonal contraceptives (the pill) had menstrual bleeding of shorter duration than those (n = 511) not using pills or intrauterine devices (IUD), who in turn had bleeding of shorter duration than those (n= 101) using IUD. Median S\u2010ferritin in pill users was 62 \u03bcg\/L in those not using pills or IUD 42 \u03bcg\/L and in IUD users 36 \u03bcg\/l. S\u2010ferritin values &lt; 40 \u03bcg\/l (i.e. small and depleted iron stores) were seen in 25%) of pill users. in 48% of those not using pills nr IUD, and in 61% of IUD users. Hb values in premenopausal women were mean 134 \u00b1 10 (SD) g\/1 (8.3\u00b10.6 mmol\/l), median 132 g\/l (8.2 mmol\/l). being slightly lower than in postmenopausal women, mean 137 \u00b1 10 g\/l (8.5\u00b10.6 mmol\/1), median 135 g\/l (8.4 mmol\/ 1) (p&lt;0.001). Iron deficiency anemia (i.e. S\u2010ferritin \u226420 \u03bcg\/l and Hb &lt; 121 g\/l) was found in 3.0%) of premenopausal and in none of postmenopausal women.<\/jats:p>","DOI":"10.3109\/00016349309021150","type":"journal-article","created":{"date-parts":[[2007,11,21]],"date-time":"2007-11-21T19:46:30Z","timestamp":1195674390000},"page":"601-605","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":53,"title":["Iron status in Danish women aged 35\u201365 years"],"prefix":"10.1111","volume":"72","author":[{"given":"Nils","family":"Milman","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nils","family":"Rosdahl","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Niels","family":"Lyhne","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Torben","family":"J\u00f8rgensen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Niels","family":"Graudal","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2011,1,7]]},"reference":[{"key":"e_1_2_1_2_1","first-page":"31","article-title":"Iron nutrition and food iron fortification","volume":"19","author":"Hallberg L.","year":"1982","journal-title":"Sem Hematol"},{"key":"e_1_2_1_3_1","first-page":"98","article-title":"Iron status in 1113 Danish men and women aged 36\u201365 years. Relation to dietary and supplemental iron intake","volume":"37","author":"Milman N.","year":"1993","journal-title":"Scand J Nutr"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF01698138"},{"key":"e_1_2_1_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9343(68)90069-7"},{"key":"e_1_2_1_6_1","doi-asserted-by":"publisher","DOI":"10.3109\/00016346609158455"},{"key":"e_1_2_1_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1471-0528.1971.tb00208.x"},{"key":"e_1_2_1_8_1","first-page":"477","volume-title":"Iron in Biochemistry and Medicine","author":"Heaton GH","year":"1974"},{"key":"e_1_2_1_9_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF01483914"},{"key":"e_1_2_1_10_1","volume-title":"L\u00e6gemiddelforbruget i Danmark 1991","author":"Dansk L\u00e6gemiddelstatistik","year":"1992"},{"issue":"8","key":"e_1_2_1_11_1","article-title":"Clinical studies on oral contraceptives a randomized, doubleblind crossover study of four diflerent populations","volume":"46","author":"Nilsson L.","year":"1967","journal-title":"Acta Obstet Gynecol Scand"},{"key":"e_1_2_1_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(76)90216-6"}],"container-title":["Acta Obstetricia et Gynecologica Scandinavica"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.3109%2F00016349309021150","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.3109\/00016349309021150","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,25]],"date-time":"2023-10-25T00:00:53Z","timestamp":1698192053000},"score":1,"resource":{"primary":{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/10.3109\/00016349309021150"}},"subtitle":["Relation to menstruation and method of contraception"],"short-title":[],"issued":{"date-parts":[[1993,11]]},"references-count":11,"journal-issue":{"issue":"8","published-print":{"date-parts":[[1993,11]]}},"alternative-id":["10.3109\/00016349309021150"],"URL":"https:\/\/doi.org\/10.3109\/00016349309021150","archive":["Portico"],"relation":{},"ISSN":["0001-6349","1600-0412"],"issn-type":[{"value":"0001-6349","type":"print"},{"value":"1600-0412","type":"electronic"}],"subject":[],"published":{"date-parts":[[1993,11]]},"assertion":[{"value":"2011-01-07","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}