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Article: The association between smoking and cancer incidence in BRCA1 and BRCA2 mutation carriers

TitleThe association between smoking and cancer incidence in BRCA1 and BRCA2 mutation carriers
Authors
Issue Date2018
PublisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www3.interscience.wiley.com/journal/29331/home
Citation
International Journal of Cancer, 2018, v. 142, p. 2263-2272 How to Cite?
AbstractTobacco smoke is an established carcinogen, but the association between tobacco smoking and cancer risk in BRCA mutation carriers is not clear. The aim of this study was to evaluate prospectively the association between tobacco smoking and cancer incidence in a cohort of BRCA1 and BRCA2 mutation carriers. The study population consisted of unaffected BRCA mutation carriers. Information on lifestyle including smoking histories, reproductive factors, and past medical histories was obtained through questionnaires. Incident cancers were updated biennially via follow-up questionnaires. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated using time-dependent Cox regression models. There were 700 incident cancers diagnosed over 26,711 person-years of follow-up. The most frequent cancers seen in BRCA mutation carriers were breast (n = 428; 61%) and ovarian (n = 109; 15%) cancer. Compared to nonsmokers, (ever) smoking was associated with a modest increased risk of all cancers combined (HR = 1.17; 95%CI 1.01-1.37). Women in the highest group of total pack-years (4.3-9.8) had an increased risk of developing any cancer (HR = 1.27; 95%CI 1.04-1.56), breast cancer (HR = 1.33, 95%CI 1.02-1.75), and ovarian cancer (HR = 1.68; 95%CI 1.06-2.67) compared to never smokers. The associations between tobacco smoking and cancer did not differ by BRCA mutation type or by age at diagnosis. This prospective study suggests that tobacco smoking is associated with a modest increase in the risks of breast and ovarian cancer among women with BRCA1 or BRCA2 mutation.
Persistent Identifierhttp://hdl.handle.net/10722/258747
ISSN
2017 Impact Factor: 7.36
2015 SCImago Journal Rankings: 2.657
PubMed Central ID
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorKo, KP-
dc.contributor.authorKim, SJ-
dc.contributor.authorHuzarski, T-
dc.contributor.authorGronwald, J-
dc.contributor.authorLubinski, J-
dc.contributor.authorLynch, HT-
dc.contributor.authorArmel, S-
dc.contributor.authorPark, SK-
dc.contributor.authorKarlan, B-
dc.contributor.authorSinger, CF-
dc.contributor.authorNeuhausen, SL-
dc.contributor.authorNarod, SA-
dc.contributor.authorKotsopoulos, J-
dc.contributor.authorKwong, A-
dc.date.accessioned2018-08-22T01:43:26Z-
dc.date.available2018-08-22T01:43:26Z-
dc.date.issued2018-
dc.identifier.citationInternational Journal of Cancer, 2018, v. 142, p. 2263-2272-
dc.identifier.issn0020-7136-
dc.identifier.urihttp://hdl.handle.net/10722/258747-
dc.description.abstractTobacco smoke is an established carcinogen, but the association between tobacco smoking and cancer risk in BRCA mutation carriers is not clear. The aim of this study was to evaluate prospectively the association between tobacco smoking and cancer incidence in a cohort of BRCA1 and BRCA2 mutation carriers. The study population consisted of unaffected BRCA mutation carriers. Information on lifestyle including smoking histories, reproductive factors, and past medical histories was obtained through questionnaires. Incident cancers were updated biennially via follow-up questionnaires. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated using time-dependent Cox regression models. There were 700 incident cancers diagnosed over 26,711 person-years of follow-up. The most frequent cancers seen in BRCA mutation carriers were breast (n = 428; 61%) and ovarian (n = 109; 15%) cancer. Compared to nonsmokers, (ever) smoking was associated with a modest increased risk of all cancers combined (HR = 1.17; 95%CI 1.01-1.37). Women in the highest group of total pack-years (4.3-9.8) had an increased risk of developing any cancer (HR = 1.27; 95%CI 1.04-1.56), breast cancer (HR = 1.33, 95%CI 1.02-1.75), and ovarian cancer (HR = 1.68; 95%CI 1.06-2.67) compared to never smokers. The associations between tobacco smoking and cancer did not differ by BRCA mutation type or by age at diagnosis. This prospective study suggests that tobacco smoking is associated with a modest increase in the risks of breast and ovarian cancer among women with BRCA1 or BRCA2 mutation.-
dc.languageeng-
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www3.interscience.wiley.com/journal/29331/home-
dc.relation.ispartofInternational Journal of Cancer-
dc.rightsInternational Journal of Cancer. Copyright © John Wiley & Sons, Inc.-
dc.rightsPreprint: This is the pre-peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. Postprint: This is the peer reviewed version of the following article: [FULL CITE], which has been published in final form at [Link to final article using the DOI]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. Special Statement for Preprint only Before publication: 'This is a preprint of an article accepted for publication in [The Journal of Pathology] Copyright © ([year]) ([Pathological Society of Great Britain and Ireland])'. After publication: the preprint notice should be amended to follows: 'This is a preprint of an article published in [include the complete citation information for the final version of the Contribution as published in the print edition of the Journal]' For Cochrane Library/ Cochrane Database of Systematic Reviews, add statement & acknowledgement : ‘This review is published as a Cochrane Review in the Cochrane Database of Systematic Reviews 20XX, Issue X. Cochrane Reviews are regularly updated as new evidence emerges and in response to comments and criticisms, and the Cochrane Database of Systematic Reviews should be consulted for the most recent version of the Review.’ Please include reference to the Review and hyperlink to the original version using the following format e.g. Authors. Title of Review. Cochrane Database of Systematic Reviews 20XX, Issue #. Art. No.: CD00XXXX. DOI: 10.1002/14651858.CD00XXXX (insert persistent link to the article by using the URL: http://dx.doi.org/10.1002/14651858.CD00XXXX) (This statement should refer to the most recent issue of the Cochrane Database of Systematic Reviews in which the Review published.)-
dc.titleThe association between smoking and cancer incidence in BRCA1 and BRCA2 mutation carriers-
dc.typeArticle-
dc.identifier.emailKwong, A: avakwong@hku.hk-
dc.identifier.authorityKwong, A=rp01734-
dc.identifier.doi10.1002/ijc.31257-
dc.identifier.pmcidPMC6020833-
dc.identifier.hkuros287509-
dc.identifier.volume142-
dc.identifier.spage2263-
dc.identifier.epage2272-
dc.identifier.isiWOS:000429545800008-
dc.publisher.placeUnited States-

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