Risk factors for breast cancer presentation in Centro Medico Nacional Siglo XXI.

Introduction: In Mexico the breast cancer is second cause of die for cancer, immediately of cervicouterine cancer, is important determine frequency of risk factors (RF) of breast cancer in women with diagnostic of breast cancer treated in Medical National Center XXI Century Hospital (CMN XXI Century), known the RF that determined these women to suffering the disease it will be possible create more specific actions directed for the precocious prevention. Materials and Methods: Transverse descriptive study, there were included 100 patients of oncology area CMN XXI Century by diagnosis of breast cancer, during July - August, 2005 The patients answer the interview, and risk factors were analyzed.