Intellectual or developmental disabilities and curative female breast cancer treatment: A population-based retrospective cohort study.

ABSTRACT:

Background

Adults with intellectual or developmental disabilities (IDD) diagnosed with breast cancer are more likely to die than those without IDD. Differences in breast cancer treatment among individuals with and without IDD could contribute to survival disparities. We compared breast cancer treatment receipt among adults with and without IDD.

Methods

A population-based retrospective cohort study was conducted using administrative data. We included adult females diagnosed with stage I-III breast cancer in Ontario (2007-2018). IDD status was identified using an established algorithm. We estimated associations between IDD and surgical resection, adjuvant chemotherapy, and radiation using cause-specific hazards models in four distinct cohorts determined by stage and treatment

SUBMITTER: Hansford RL 

PROVIDER: S-EPMC12206116 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature