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

Kast, K; John, EM; Hopper, JL; Andrieu, N; Nogues, C; Mouret-Fourme, E; Lasset, C; Fricker, JP; Berthet, P; Mari, V; Salle, L; Schmidt, MK; Ausems, MGEM; Garcia, EBG; van de Beek, I; Wevers, MR; Evans, DG; Tischkowitz, M; Lalloo, F; Cook, J; Izatt, L; Tripathi, V; Snape, K; Musgrave, H; Sharif, S; Murray, J; EMBRACE Collaborators; Colonna, SV; Andrulis, IL; Daly, MB; Southey, MC; de la Hoya, M; Osorio, A; Foretova, L; Berkova, D; Gerdes, AM; Olah, E; Jakubowska, A; Singer, CF; Tan, Y; Augustinsson, A; Rantala, J; Simard, J; Schmutzler, RK; Milne, RL; Phillips, KA; Terry, MB; Goldgar, D; van Leeuwen, FE; Mooij, TM; Antoniou, AC; Easton, DF; Rookus, MA; Engel, C

Author(s): Kast, K; John, EM; Hopper, JL; Andrieu, N; Nogues, C; Mouret-Fourme, E; Lasset, C; Fricker, JP; Berthet, P; Mari, V; Salle, L; Schmidt, MK; Ausems, MGEM; Garcia, EBG; van de Beek, I; Wevers, MR; Evans, DG; Tischkowitz, M; Lalloo, F; Cook, J; Izatt, L; Tripathi, V; Snape, K; Musgrave, H; Sharif, S; Murray, J; EMBRACE Collaborators; Colonna, SV; Andrulis, IL; Daly, MB; Southey, MC; de la Hoya, M; Osorio, A; Foretova, L; Berkova, D; Gerdes, AM; Olah, E; Jakubowska, A; Singer, CF; Tan, Y; Augustinsson, A; Rantala, J; Simard, J; Schmutzler, RK; Milne, RL; Phillips, KA; Terry, MB; Goldgar, D; van Leeuwen, FE; Mooij, TM; Antoniou, AC; Easton, DF; Rookus, MA; Engel, C;
Details: Publication Year 2023-06-20,Volume 25,Issue #1,Page 72
Journal Title: Breast Cancer Research
Publication Type: Research article
Abstract: 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.
Publisher: BioMed Central
Keywords: Adult; Female; Humans; Body Mass Index; *Genes, BRCA2; BRCA1 Protein/genetics; *Breast Neoplasms/epidemiology/genetics/pathology; BRCA2 Protein/genetics; Risk; Retrospective Studies; Weight Gain/genetics; Heterozygote; Genetic Predisposition to Disease
Department(s): Medical Oncology
PubMed ID: 37340476
Publisher's Version: https://doi.org/10.1186/s13058-023-01673-w
Open Access at Publisher's Site: https://doi.org/10.1186/s13058-023-01673-w
Terms of Use/Rights Notice: Refer to copyright notice on published article.

Creation Date: 2023-09-28 07:45:35

Last Modified: 2023-09-28 07:46:07