Breast Cancer Characteristics and Outcomes in Canadian Black Women by Ancestry.

ABSTRACT: Breast cancer is the most common cancer among women in Canada. Its presentation and outcomes vary significantly by race/ethnicity. This study explores breast cancer incidence, age at diagnosis, stage, subtype, and mortality, comparing Black and White women aged 20 years and older, using the 2011 and 2016 Canadian Census Health and Environment Cohorts databases. Black women were disaggregated into Caribbean, Central/West African (C/WA), Southern/East African (S/EA), and "Other" ancestry groups. The Black female study population had a lower mean age (43.0 years) than the White (50.5 years). Black women had lower overall age-standardized breast cancer incidence than White women. The age-specific incidence in Black women ages 30-39 of Caribbean origin was higher (RR 95% CL, 1.36, 1.04-1.79; 58

SUBMITTER: Wilkinson AN 

PROVIDER: S-EPMC12651697 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature