Effectiveness of Population-Based Service Screening With Mammography for Women Ages 40 to 49 Years Evaluation of the Swedish Mammography Screening in Young Women (SCRY) Cohort
BACKGROUND: The effectiveness of mammography screening for women ages 40 to 49 years still is questioned, and few studies of the effectiveness of service screening for this age group have been conducted. METHODS: Breast cancer mortality was compared between women who were invited to service screening at ages 40 to 49 years (study group) and women in the same age group who were not invited during 1