Quantifying the relationship between age at diagnosis and breast cancer-specific mortality

The relationship between age at diagnosis and breast cancer-specific mortality (BCSM) is unclear. The aim of this study was to examine the nature of this relationship using rigorous statistical methodology. A historical cohort study of adult women with invasive breast cancer in the SEER database from 2000 to 2015 was conducted. Multivariable Cox’s cause-specific hazards model was used to evaluate the association of age at diagnosis with risk of...