RT Journal Article T1 Physical activity and risks of breast and colorectal cancer: a Mendelian randomisation analysis A1 Papadimitriou, Nikos A1 Dimou, Niki A1 Tsilidis, Konstantinos K. A1 Banbury, Barbara A1 Martin, Richard M. A1 Lewis, Sarah J. A1 Kazmi, Nabila A1 Robinson, Timothy M. A1 Albanes, Demetrius A1 Aleksandrova, Krasimira A1 Berndt, Sonja I. A1 Bishop, D. Timothy A1 Brenner, Hermann A1 Buchanan, Daniel D. A1 Bueno-de-Mesquita, Bas A1 Campbell, Peter T. A1 Castellví-Bel, Sergi A1 Chan, Andrew T. A1 Chang-Claude, Jenny A1 Ellingjord-Dale, Merete A1 Figueiredo, Jane C. A1 Gallinger, Steven J. A1 Giles, Graham G. A1 Giovannucci, Edward A1 Gruber, Stephen B. A1 Gsur, Andrea A1 Hampe, Jochen A1 Hampel, Heather A1 Harlid, Sophia A1 Harrison, Tabitha A. A1 Hoffmeister, Michael A1 Hopper, John L. A1 Hsu, Li A1 Huerta, José María A1 Huyghe, Jeroen R. A1 Jenkins, Mark A. A1 Keku, Temitope O. A1 Kühn, Tilman A1 La Vecchia, Carlo A1 Le Marchand, Loic A1 Li, Christopher I. A1 Li, Li A1 Lindblom, Annika A1 Lindor, Noralane M. A1 Lynch, Brigid A1 Markowitz, Sanford D. A1 Masala, Giovanna A1 May, Anne M. A1 Milne, Roger A1 Monninkhof, Evelyn A1 Moreno, Lorena A1 Moreno, Victor A1 Newcomb, Polly A. A1 Offit, Kenneth A1 Perduca, Vittorio A1 Pharoah, Paul D. P. A1 Platz, Elizabeth A. A1 Potter, John D. A1 Rennert, Gad A1 Riboli, Elio A1 Sanchez-Perez, Maria-Jose A1 Schmit, Stephanie L. A1 Schoen, Robert E. A1 Severi, Gianluca A1 Sieri, Sabina A1 Slattery, Martha L. A1 Song, Mingyang A1 Tangen, Catherine M. A1 Thibodeau, Stephen N. A1 Travis, Ruth C. A1 Trichopoulou, Antonia A1 Ulrich, Cornelia M. A1 van Duijnhoven, Franzel J. B. A1 Van Guelpen, Bethany A1 Vodicka, Pavel A1 White, Emily A1 Wolk, Alicja A1 Woods, Michael O. A1 Wu, Anna H. A1 Peters, Ulrike A1 Gunter, Marc J. A1 Murphy, Neil K1 Exercise K1 Breast neoplasms K1 Colorectal neoplasms K1 Risk factors K1 Analyses K1 Ejercicio físico K1 Neoplasias de la mama K1 Neoplasias colorrectales K1 Factores de riesgo AB Physical activity has been associated with lower risks of breast and colorectal cancer in epidemiological studies; however, it is unknown if these associations are causal or confounded. In two-sample Mendelian randomisation analyses, using summary genetic data from the UK Biobank and GWA consortia, we found that a one standard deviation increment in average acceleration was associated with lower risks of breast cancer (odds ratio [OR]: 0.51, 95% confidence interval [CI]: 0.27 to 0.98, P-value = 0.04) and colorectal cancer (OR: 0.66, 95% CI: 0.48 to 0.90, P-value = 0.01). We found similar magnitude inverse associations for estrogen positive (ER+ve) breast cancer and for colon cancer. Our results support a potentially causal relationship between higher physical activity levels and lower risks of breast cancer and colorectal cancer. Based on these data, the promotion of physical activity is probably an effective strategy in the primary prevention of these commonly diagnosed cancers. PB Springer Nature YR 2020 FD 2020-01-30 LK http://hdl.handle.net/10668/4067 UL http://hdl.handle.net/10668/4067 LA en NO Papadimitriou N, Dimou N, Tsilidis KK, Banbury B, Martin RM, Lewis SJ, et al. Physical activity and risks of breast and colorectal cancer: a Mendelian randomisation analysis. Nat Commun. 2020 Jan 30;11(1):597 DS RISalud RD May 9, 2025