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Risks of breast, ov...
Risks of breast, ovarian, and contralateral breast cancer for BRCA1 and BRCA2 mutation carriers
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- Kuchenbaecker, Karoline B. (författare)
- University of Cambridge,Wellcome Trust
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- Hopper, John L. (författare)
- University of Melbourne
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- Barnes, Daniel R. (författare)
- University of Cambridge
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- Phillips, Kelly Anne (författare)
- Peter MacCallum Cancer Centre,University of Melbourne
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- Mooij, Thea M. (författare)
- Netherlands Cancer Institute
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- Roos-Blom, Marie José (författare)
- Netherlands Cancer Institute,Academic Medical Center of University of Amsterdam (AMC)
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- Jervis, Sarah (författare)
- University of Warwick,University of Cambridge
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- Van Leeuwen, Flora E. (författare)
- Netherlands Cancer Institute
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- Milne, Roger L. (författare)
- University of Melbourne,Cancer Council Victoria
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- Andrieu, Nadine (författare)
- PSL University,Curie Institute, Paris
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- Goldgar, David E. (författare)
- University of Utah
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- Terry, Mary Beth (författare)
- Columbia University
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- Rookus, Matti A. (författare)
- Netherlands Cancer Institute
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- Easton, Douglas F. (författare)
- University of Cambridge
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- Antoniou, Antonis C. (författare)
- University of Cambridge
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- Olsson, Håkan (författare)
- Lund University,Lunds universitet,Lunds Melanomstudiegrupp,Forskargrupper vid Lunds universitet,Lund Melanoma Study Group,Lund University Research Groups,Skåne University Hospital
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(creator_code:org_t)
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- American Medical Association (AMA), 2017
- 2017
- Engelska.
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Ingår i: JAMA - Journal of the American Medical Association. - : American Medical Association (AMA). - 0098-7484. ; 317:23, s. 2402-2416
- Relaterad länk:
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http://dx.doi.org/10...
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https://jamanetwork....
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- IMPORTANCE The clinical management of BRCA1 and BRCA2 mutation carriers requires accurate, prospective cancer risk estimates. OBJECTIVES To estimate age-specific risks of breast, ovarian, and contralateral breast cancer for mutation carriers and to evaluate risk modification by family cancer history and mutation location. DESIGN, SETTING, AND PARTICIPANTS Prospective cohort study of 6036 BRCA1 and 3820 BRCA2 female carriers (5046 unaffected and 4810 with breast or ovarian cancer or both at baseline) recruited in 1997-2011 through the International BRCA1/2 Carrier Cohort Study, the Breast Cancer Family Registry and the Kathleen Cuningham Foundation Consortium for Research into Familial Breast Cancer, with ascertainment through family clinics (94%) and population-based studies (6%). The majority were from large national studies in the United Kingdom (EMBRACE), the Netherlands (HEBON), and France (GENEPSO). Follow-up ended December 2013; median follow-up was 5 years. EXPOSURES BRCA1/2 mutations, family cancer history, and mutation location. MAIN OUTCOMES AND MEASURES Annual incidences, standardized incidence ratios, and cumulative risks of breast, ovarian, and contralateral breast cancer. RESULTS Among 3886 women (median age, 38 years; interquartile range [IQR], 30-46 years) eligible for the breast cancer analysis, 5066 women (median age, 38 years; IQR, 31-47 years) eligible for the ovarian cancer analysis, and 2213 women (median age, 47 years; IQR, 40-55 years) eligible for the contralateral breast cancer analysis, 426 were diagnosed with breast cancer, 109 with ovarian cancer, and 245 with contralateral breast cancer during follow-up. The cumulative breast cancer risk to age 80 years was 72%(95%CI, 65%-79%) for BRCA1 and 69%(95%CI, 61%-77%) for BRCA2 carriers. Breast cancer incidences increased rapidly in early adulthood until ages 30 to 40 years for BRCA1 and until ages 40 to 50 years for BRCA2 carriers, then remained at a similar, constant incidence (20-30 per 1000 person-years) until age 80 years. The cumulative ovarian cancer risk to age 80 years was 44%(95%CI, 36%-53%) for BRCA1 and 17%(95%CI, 11%-25%) for BRCA2 carriers. For contralateral breast cancer, the cumulative risk 20 years after breast cancer diagnosis was 40% (95%CI, 35%-45%) for BRCA1 and 26%(95%CI, 20%-33%) for BRCA2 carriers (hazard ratio [HR] for comparing BRCA2 vs BRCA1, 0.62; 95%CI, 0.47-0.82; P=.001 for difference). Breast cancer risk increased with increasing number of first- and second-degree relatives diagnosed as having breast cancer for both BRCA1 (HR for 2 vs 0 affected relatives, 1.99; 95%CI, 1.41-2.82; P<.001 for trend) and BRCA2 carriers (HR, 1.91; 95%CI, 1.08-3.37; P=.02 for trend). Breast cancer risk was higher if mutations were located outside vs within the regions bounded by positions c.2282-c.4071 in BRCA1 (HR, 1.46; 95%CI, 1.11-1.93; P=.007) and c.2831-c.6401 in BRCA2 (HR, 1.93; 95%CI, 1.36-2.74; P<.001). CONCLUSIONS AND RELEVANCE These findings provide estimates of cancer risk based on BRCA1 and BRCA2 mutation carrier status using prospective data collection and demonstrate the potential importance of family history and mutation location in risk assessment.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
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Kuchenbaecker, K ...
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Hopper, John L.
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Barnes, Daniel R ...
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Phillips, Kelly ...
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Mooij, Thea M.
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Roos-Blom, Marie ...
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Jervis, Sarah
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Van Leeuwen, Flo ...
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Milne, Roger L.
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Andrieu, Nadine
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Goldgar, David E ...
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Terry, Mary Beth
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Rookus, Matti A.
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Easton, Douglas ...
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Antoniou, Antoni ...
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Olsson, Håkan
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