Demographic factors associated with differential uptake and outcomes of breast cancer screening in English regions: 2007-2020

This national ecological analysis demonstrates that lower breast screening coverage and invasive cancer detection rates in London are associated with demographic factors, particularly ethnicity, deprivation and migration. Despite poorer participation, breast cancer mortality in London is not worse than in other English regions. The findings emphasise the importance of demographic factors in breast screening outcomes and improved data linkage to address regional inequalities in breast cancer screening and outcomes.