Alcohol intake and breast cancer in the European prospective investigation into cancer and nutrition
AuthorRomieu, Isabelle; Scoccianti, Chiara; Chajès, Véronique; De Batlle, Jordi; Biessy, Carine; Dossus, Laure; Baglietto, Laura; Clavel-Chapelon, Françoise; Overvad, Kim; Olsen, Anja; Tjønneland, Anne; Kaaks, Rudolf; Lukanova, Annekatrin; Boeing, Heiner; Trichopoulou, Antonia; Lagiou, Pagona; Trichopoulos, Dimitrios; Palli, Domenico; Sieri, Sabina; Tumino, Rosario; Vineis, Paolo; Panico, Salvatore; Bueno-de-Mesquita, H. Bas; van Gils, Carla H.; Peeters, Petra H.; Lund, Eiliv; Skeie, Guri; Weiderpass, Elisabete; García, José Ramón Quirós; Chirlaque, Maria-Dolores; Ardanaz, Eva; Sánchez, María-José; Duell, Eric J.; Amiano, Pilar; Borgquist, Signe; Wirfält, Elisabet; Hallmans, Göran; Johansson, Ingegerd; Nilsson, Lena Maria; Khaw, Kay-Tee; Wareham, Nick; Key, Timothy J.; Travis, Ruth C.; Murphy, Neil; Wark, Petra A.; Ferrari, Pietro; Riboli, Elio
Although it is now established that alcohol consumption increases breast cancer risk, many questions remain. Using a prospective study design with 11,576 incident breast cancer cases across 10 European countries, the authors confirmed the increased risk of alcohol on breast cancer development. They further show that women who started drinking before their first full-term pregnancy have a higher risk than women who started afterwards. These effects were observed in hormone-receptor positive and –negative tumors pointing to non-hormonal pathways that need to be further investigated.