Document Detail


Previous pregnancy outcome and breast density (United States).
MedLine Citation:
PMID:  15953983     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: We evaluated the association of pre-term delivery (PTD), low birth weight (LBW), and fetal death with breast density by age at mammogram and years since birth. METHODS: Subjects were women aged < or =55 years who had a screening mammogram between 1 June 1996 and 1 August 1997 in Seattle, Washington, and whose records were linked to their previous state birth (1 January 1968 to 1 August 1997) or fetal death (1/1/1984-8/1/1997) records. We used unconditional logistic regression, adjusting for age at mammogram, body mass index, age at first birth, and menopausal status, to calculate the odds of dense (extremely or heterogeneously dense by BI-RADS) (n=3593) versus fatty breasts (scattered fibroglandular tissue or almost entirely fat) (n=2378) for women with a prior PTD (< 34, 34-36 versus > or =37 weeks gestation), LBW (< 2500 versus > or =2500 g), or fetal death (stillborn 20 weeks gestation versus live birth). RESULTS: The odds for denser breasts increased among women with PTD at <34 weeks gestation who were < or =45 years at time of mammogram (odds ratio (OR) and 95 confidence interval (CI)=2.8 (1.3-6.1)) and for whom <10 years had elapsed since pregnancy (OR=8.8 (1.7-45.8)). We observed similar increases in density among women with LBW (OR=3.3 (1.3-8.2)) when <10 years had elapsed. CONCLUSIONS: PTD and LBW may have a transitory effect on breast density.
Authors:
Amira Y El-Bastawissi; Erin J Aiello; Diana S M Buist; Stephen H Taplin
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Cancer causes & control : CCC     Volume:  16     ISSN:  0957-5243     ISO Abbreviation:  Cancer Causes Control     Publication Date:  2005 May 
Date Detail:
Created Date:  2005-06-14     Completed Date:  2005-11-08     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  9100846     Medline TA:  Cancer Causes Control     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  407-17     Citation Subset:  IM    
Affiliation:
Offices of Epidemiology and Community Wellness and Prevention, Washington State Department of Health, MS 47839, Olympia, WA 98504-7839, USA. Amira.el-bastawissi@doh.wa.gov
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MeSH Terms
Descriptor/Qualifier:
Adult
Age Factors
Body Mass Index
Breast / pathology*
Breast Neoplasms / epidemiology,  etiology
Cohort Studies
Confidence Intervals
Female
Fetal Death*
Follow-Up Studies
Gestational Age
Humans
Infant, Low Birth Weight
Infant, Newborn
Infant, Premature*
Logistic Models
Mammography
Middle Aged
Odds Ratio
Precancerous Conditions / pathology*
Pregnancy
Pregnancy Outcome*
Retrospective Studies
Risk Assessment
United States
Grant Support
ID/Acronym/Agency:
T32 CA 09661/CA/NCI NIH HHS; U01 CA 63731/CA/NCI NIH HHS

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