Associations of height, body mass index, and weight gain with breast cancer risk in carriers of a pathogenic variant in BRCA1 or BRCA2: the BRCA1 and BRCA2 Cohort Consortium

INTRODUCTION: Height, body mass index (BMI), and weight gain are associated with breast cancer risk in the general population. It is unclear whether these associations also exist for carriers of pathogenic variants in the BRCA1 or BRCA2 genes. PATIENTS AND METHODS: An international pooled cohort of...

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Detalles Bibliográficos
Autores principales: Kast, Karin, John, Esther M., Hopper, John L., Andrieu, Nadine, Noguès, Catherine, Mouret-Fourme, Emmanuelle, Lasset, Christine, Fricker, Jean-Pierre, Berthet, Pascaline, Mari, Véronique, Salle, Lucie, Schmidt, Marjanka K., Ausems, Margreet G. E. M., Garcia, Encarnacion B. Gomez, van de Beek, Irma, Wevers, Marijke R., Evans, D. Gareth, Tischkowitz, Marc, Lalloo, Fiona, Cook, Jackie, Izatt, Louise, Tripathi, Vishakha, Snape, Katie, Musgrave, Hannah, Sharif, Saba, Murray, Jennie, Colonna, Sarah V., Andrulis, Irene L., Daly, Mary B., Southey, Melissa C., de la Hoya, Miguel, Osorio, Ana, Foretova, Lenka, Berkova, Dita, Gerdes, Anne-Marie, Olah, Edith, Jakubowska, Anna, Singer, Christian F., Tan, Yen, Augustinsson, Annelie, Rantala, Johanna, Simard, Jacques, Schmutzler, Rita K., Milne, Roger L., Phillips, Kelly-Anne, Terry, Mary Beth, Goldgar, David, van Leeuwen, Flora E., Mooij, Thea M., Antoniou, Antonis C., Easton, Douglas F., Rookus, Matti A., Engel, Christoph
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2023
Materias:
Research
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10280955/
https://www.ncbi.nlm.nih.gov/pubmed/37340476
http://dx.doi.org/10.1186/s13058-023-01673-w
Descripción
Sumario:INTRODUCTION: Height, body mass index (BMI), and weight gain are associated with breast cancer risk in the general population. It is unclear whether these associations also exist for carriers of pathogenic variants in the BRCA1 or BRCA2 genes. PATIENTS AND METHODS: An international pooled cohort of 8091 BRCA1/2 variant carriers was used for retrospective and prospective analyses separately for premenopausal and postmenopausal women. Cox regression was used to estimate breast cancer risk associations with height, BMI, and weight change. RESULTS: In the retrospective analysis, taller height was associated with risk of premenopausal breast cancer for BRCA2 variant carriers (HR 1.20 per 10 cm increase, 95% CI 1.04–1.38). Higher young-adult BMI was associated with lower premenopausal breast cancer risk for both BRCA1 (HR 0.75 per 5 kg/m(2), 95% CI 0.66–0.84) and BRCA2 (HR 0.76, 95% CI 0.65–0.89) variant carriers in the retrospective analysis, with consistent, though not statistically significant, findings from the prospective analysis. In the prospective analysis, higher BMI and adult weight gain were associated with higher postmenopausal breast cancer risk for BRCA1 carriers (HR 1.20 per 5 kg/m(2), 95% CI 1.02–1.42; and HR 1.10 per 5 kg weight gain, 95% CI 1.01–1.19, respectively). CONCLUSION: Anthropometric measures are associated with breast cancer risk for BRCA1 and BRCA2 variant carriers, with relative risk estimates that are generally consistent with those for women from the general population. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s13058-023-01673-w.

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