Alcohol Consumption, Cigarette Smoking, and Risk of Breast Cancer for BRCA1 and BRCA2 Mutation Carriers: Results from The BRCA1 and BRCA2 Cohort Consortium.
Alcohol Consumption, Cigarette Smoking, and Risk of Breast Cancer for BRCA1 and BRCA2 Mutation Carriers: Results from The BRCA1 and BRCA2 Cohort Consortium.
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DOI:
10.1158/1055-9965.epi-19-0546
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发表时间:
2020-02
期刊:
影响因子:
--
通讯作者:
Goldgar DE
中科院分区:
文献类型:
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作者:
Li H;Terry MB;Antoniou AC;Phillips KA;Kast K;Mooij TM;Engel C;Noguès C;Stoppa-Lyonnet D;Lasset C;Berthet P;Mari V;Caron O;GENEPSO study;Barrowdale D;Frost D;Brewer C;Evans DG;Izatt L;Side L;Walker L;Tischkowitz M;Rogers MT;Porteous ME;Snape K;EMBRACE study;Meijers-Heijboer HEJ;Gille JJP;Blok MJ;Hoogerbrugge N;HEBON Investigators;Daly MB;Andrulis IL;Buys SS;John EM;McLachlan SA;Friedlander M;kConFab Investigators;Tan YY;Osorio A;Caldes T;Jakubowska A;Simard J;Singer CF;Olah E;Navratilova M;Foretova L;Gerdes AM;Roos-Blom MJ;Arver B;Olsson H;Schmutzler RK;Hopper JL;Milne RL;Easton DF;Van Leeuwen FE;Rookus MA;Andrieu N;Goldgar DE
Tobacco smoking and alcohol consumption have been intensively studied in the general population to assess their effects on the risk of breast cancer (BC), but very few studies have examined these effects in BRCA1 and BRCA2 mutation carriers. Given the high BC risk for mutation carriers and the importance of BRCA1 and BRCA2 in DNA repair, better evidence on the associations of these lifestyle factors with BC risk is essential. Using a large international pooled cohort of BRCA1 and BRCA2 mutation carriers, we conducted retrospective (5,707 BRCA1 mutation carriers; 3,525 BRCA2 mutation carriers) and prospective (2,276 BRCA1 mutation carriers; 1,610 BRCA2 mutation carriers) analyses of alcohol and tobacco consumption using Cox proportional hazards models. For both BRCA1 and BRCA2 mutation carriers, none of the smoking-related variables was associated with BC risk, except smoking for more than five years before a first full-term pregnancy (FFTP) when compared to parous women who never smoked. For BRCA1 mutation carriers, the HR from retrospective analysis (HRR) was 1.19 (95%CI:1.02,1.39) and the HR from prospective analysis (HRP) was 1.36 (95%CI:0.99,1.87). For BRCA2 mutation carriers, smoking for more than five years before a FFTP showed an association of a similar magnitude, but the confidence limits were wider (HRR=1.25,95%CI:1.01,1.55 and HRP=1.30,95%CI:0.83,2.01). For both carrier groups, alcohol consumption was not associated with BC risk. The finding that smoking during the pre-reproductive years increases BC risk for mutation carriers warrants further investigation.