Document Detail

Active and passive smoking and breast cancer risk in middle-aged Japanese women.
MedLine Citation:
PMID:  15540214     Owner:  NLM     Status:  MEDLINE    
To examine the hypothesis that tobacco smoke is associated with the risk of female breast cancer, we estimated the relative risks of active and passive smoke in middle-aged Japanese women in a population-based prospective study. The cohort consisted of residents in 4 public health center areas, aged 40 to 59 years. A self-administered questionnaire survey was conducted in 1990. This analysis included 21,805 subjects, 180 of whom had developed breast cancer by December 31, 1999. When the reference was defined as never-active smokers without passive smoking, adjusted relative risks (RRs) were 1.9 (95% confidence interval [CI] = 1.0-3.6) in current active smokers, 1.2 (95% CI = 0.4-4.0) in ex-active smokers and 1.2 (95% CI = 0.8-1.6) in never-active smokers with passive smoking. The elevated risk for ever-smokers was clearly observed in premenopausal women at baseline (RR = 3.9, 95% CI = 1.5-9.9) but not in postmenopausal women (RR = 1.1, 95% CI = 0.5-2.5). In never-active smokers, the adjusted RR for passive smoking, residential or occupational/public tobacco smoke exposure was 1.1 (95% CI = 0.8-1.6). In premenopausal women, passive smoking increased the risk (RR = 2.6; 95% CI = 1.3-5.2) but not in postmenopausal women (RR = 0.7; 95% CI = 0.4-1.0). We conclude that tobacco smoking increases the risk of female breast cancer in premenopausal women.
Tomoyuki Hanaoka; Seiichiro Yamamoto; Tomotaka Sobue; Satoshi Sasaki; Shoichiro Tsugane;
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  International journal of cancer. Journal international du cancer     Volume:  114     ISSN:  0020-7136     ISO Abbreviation:  Int. J. Cancer     Publication Date:  2005 Mar 
Date Detail:
Created Date:  2005-01-26     Completed Date:  2005-04-13     Revised Date:  2007-07-24    
Medline Journal Info:
Nlm Unique ID:  0042124     Medline TA:  Int J Cancer     Country:  United States    
Other Details:
Languages:  eng     Pagination:  317-22     Citation Subset:  IM    
Copyright Information:
(c) 2004 Wiley-Liss, Inc.
Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo 104-0045, Japan.
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MeSH Terms
Breast Neoplasms / epidemiology*
Health Surveys
Japan / epidemiology
Middle Aged
Smoking / adverse effects*
Tobacco Smoke Pollution / adverse effects*
Reg. No./Substance:
0/Tobacco Smoke Pollution

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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