Reduced breast cancer mortality after 20+ years of follow-up in the Swedish randomized controlled mammography tr ials in Malmö, Stockholm, and Göteb… – PubMed – NCBI

September 11, 2016

The overview showed a 15% significant relative reduction in breast cancer mortality due to invitation to mammography screening. Heterogeneity in age, trial time, attendance rates, and length of screening intervals may have contributed to the variation in effect between the trials.

benefit accruing to older women only