Anna Morra, Maartje A C Schreurs, Irene L Andrulis, Hoda Anton-Culver, Annelie Augustinsson, Matthias W Beckmann, Sabine Behrens, Stig E Bojesen, Manjeet K Bolla, Hiltrud Brauch, Annegien Broeks, Saundra S Buys, Nicola J Camp, Jose E Castelao, Melissa H Cessna, Jenny Chang-Claude, Wendy K Chung, Nbcs Collaborators, Sarah V Colonna, Fergus J Couch, Angela Cox, Simon S Cross, Kamila Czene, Mary B Daly, Joe Dennis, Peter Devilee, Thilo Dörk, Alison M Dunning, Miriam Dwek, Douglas F Easton, Diana M Eccles, Mikael Eriksson, D Gareth Evans, Peter A Fasching, Tanja N Fehm, Jonine D Figueroa, Henrik Flyger, Marike Gabrielson, Manuela Gago-Dominguez, Montserrat García-Closas, José A García-Sáenz, Jeanine Genkinger, Felix Grassmann, Melanie Gündert, Eric Hahnen, Christopher A Haiman, Ute Hamann, Patricia A Harrington, Jaana M Hartikainen, Reiner Hoppe, John L Hopper, Richard S Houlston, Anthony Howell, Abctb Investigators, kConFab Investigators, Anna Jakubowska, Wolfgang Janni, Helena Jernström, Esther M John, Nichola Johnson, Michael E Jones, Vessela N Kristensen, Allison W Kurian, Diether Lambrechts, Loic Le Marchand, Annika Lindblom, Jan Lubiński, Michael P Lux, Arto Mannermaa, Dimitrios Mavroudis, Anna Marie Mulligan, Taru A Muranen, Heli Nevanlinna, Ines Nevelsteen, Patrick Neven, William G Newman, Nadia Obi, Kenneth Offit, Andrew F Olshan, Tjoung-Won Park-Simon, Alpa V Patel, Paolo Peterlongo, Kelly-Anne Phillips, Dijana Plaseska-Karanfilska, Eric C Polley, Nadege Presneau, Katri Pylkäs, Brigitte Rack, Paolo Radice, Muhammad U Rashid, Valerie Rhenius, Mark Robson, Atocha Romero, Emmanouil Saloustros, Elinor J Sawyer, Rita K Schmutzler, Sabine Schuetze, Christopher Scott, Mitul Shah, Snezhana Smichkoska, Melissa C Southey, William J Tapper, Lauren R Teras, Rob A E M Tollenaar, Katarzyna Tomczyk, Ian Tomlinson, Melissa A Troester, Celine M Vachon, Elke M van Veen, Qin Wang, Camilla Wendt, Hans Wildiers, Robert Winqvist, Argyrios Ziogas, Per Hall, Paul D P Pharoah, Muriel A Adank, Antoinette Hollestelle, Marjanka K Schmidt, Maartje J Hooning
Breast cancer (BC) patients with a germline CHEK2 c.1100delC variant have an increased risk of contralateral BC (CBC) and worse BC-specific survival (BCSS) compared to non-carriers. We aimed to assess the associations of CHEK2 c.1100delC, radiotherapy, and systemic treatment with CBC risk and BCSS. Analyses were based on 82,701 women diagnosed with invasive BC including 963 CHEK2 c.1100delC carriers; median follow-up was 9.1 years. Differential associations of treatment by CHEK2 c.1100delC status were tested by including interaction terms in a multivariable Cox regression model...
February 13, 2023: Research Square