2.3. Data CollectionFor each patient, data were collected from the date of cancer diagnosis until the end of the follow up, i.e. 60 months after surgery. Data included socio-demographical information (age at cancer diagnosis, marital status,profession, residence area) and anthropometric characteristics (body mass index) source of referral (home, hospital),co-morbidities, cancer characteristics (date of diagnosis, pathological statute, molecular subtypes, location of primary cancer, stage), date and type of surgery, other cancer treatment (radiotherapy, chemotherapy). For cancers diagnosed before 2010, the stage at diagnosis was revised according to the TNM classification of theUICC 2010 at the early (stage I-II) and late stage (stage III).