Objective: Systematic mammography screening was implemented in 2003 in the German federal state of Bavaria. Among a population of 6.3 million women, about 1.5 million women (23%) are affiliated to the target population (women aged 50 to 69 years) of the screening program. The objective of this [for full text, please go to the a.m. URL] ; SeriesInformation ; Mainz//2011; 56. Jahrestagung der Deutschen Gesellschaft für Medizinische Informatik, Biometrie und Epidemiologie (gmds), 6. Jahrestagung der Deutschen Gesellschaft für Epidemiologie (DGEpi)