This is the second report from an Australian-first project combining data from BreastScreen Australia, the National Cervical Screening Program and the National Bowel Cancer Screening Program, focusing on breast cancer outcomes and screening behaviour in BreastScreen Australia. It was found that screen-detected breast cancers were less likely to cause death than never-screened breast cancers for all age groups eligible to screen in BreastScreen Australia, with analyses giving new insights into screening behaviour.