{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,27]],"date-time":"2026-08-27T03:20:39Z","timestamp":1787800839618,"version":"build-2784847793"},"reference-count":22,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2006,7,17]],"date-time":"2006-07-17T00:00:00Z","timestamp":1153094400000},"content-version":"vor","delay-in-days":5693,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Intl Journal of Cancer"],"published-print":{"date-parts":[[1990,12,15]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The association between number of children of current marriage reported by 431,604 women aged 45\u201074 years at the Norwegian Census in 1970 and mortality, at follow\u2010up through 1985, from hormone\u2010dependent cancers, i. e., cancers of breast, corpus uteri and ovary combined, has been investigated. The reduction in age\u2010adjusted mortality was 9.6% (95% confidence interval; 8.3\u201310.9%) for each child with no deviation from linearity. Women with 8\u201011 children had a relative risk of 0.34 (0.25\u20130.47) compared to nullipara. Adjustment for age at first birth slightly changed the effect of number of children on mortality to 9.3% per child. The reduction in mortality per child was for cancer of the breast 7.2%, corpus uteri 12.2% and ovary 12.7%. Our findings indicate that having few children is a major risk factor for death from the 3 hormone\u2010dependent cancers combined.<\/jats:p>","DOI":"10.1002\/ijc.2910460608","type":"journal-article","created":{"date-parts":[[2007,2,19]],"date-time":"2007-02-19T22:09:48Z","timestamp":1171922988000},"page":"998-1000","source":"Crossref","is-referenced-by-count":11,"title":["Number of children and death from hormone\u2010dependent cancers"],"prefix":"10.1002","volume":"46","author":[{"given":"Eiliv","family":"Lund","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2006,7,17]]},"reference":[{"key":"e_1_2_1_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(88)90869-0"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/BF01805834"},{"key":"e_1_2_1_4_1","volume-title":"Statistical methods in cancer research","author":"Breslow N. 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