Structural determinants of racial disparities in breast cancer survival in Alabama
View abstract on PubMed
Summary
This summary is machine-generated.Neighborhood deprivation significantly impacts breast cancer survival disparities between Black and White women in Alabama. Addressing these socioeconomic factors could eliminate nearly half of the Black-White mortality gap.
Area Of Science
- Oncology
- Health Disparities
- Social Epidemiology
Background
- Racial disparities persist in breast cancer survival rates, with Black women facing higher mortality risks compared to White women.
- Investigating the underlying causes of this disparity is crucial for developing effective interventions and improving outcomes.
Purpose Of The Study
- To examine the mediating roles of rural-urban residence and the Area Deprivation Index (ADI) in the association between race and breast cancer survival in Alabama.
- To quantify the extent to which neighborhood deprivation explains the survival gap between Black and White women with breast cancer.
Main Methods
- Retrospective analysis of a population-based cohort of 25,195 adult Black or White women diagnosed with breast cancer in Alabama (2010-2019).
- Exposure: self-reported race. Mediators: rural-urban status (Rural-Urban Commuting Area codes) and neighborhood deprivation (state-level ADI). Outcome: overall survival.
- Statistical mediation analysis was performed after adjusting for relevant covariates.
Main Results
- White women were older at diagnosis, had lower ADI scores, and a higher proportion of rural dwellers compared to Black women.
- After adjusting for rural-urban status and ADI, a significant partial mediation of the race-survival effect was observed (Proportion Mediated: 45%).
- The Area Deprivation Index (ADI) was identified as the primary driver of the indirect effect, not rural-urban status.
Conclusions
- Differences in neighborhood deprivation mediate approximately 45% of the survival disparity between Black and White women with breast cancer in Alabama.
- Improving neighborhood deprivation could substantially reduce the Black-White breast cancer mortality gap, highlighting the importance of socioeconomic factors in cancer outcomes.
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