Mediators of Racial Disparities in Head and Neck Cancer Survival

Area of Science:

• Oncology
• Health Services Research
• Health Disparities

Background:

• Racial disparities persist in head and neck cancer (HNC) survival.
• Understanding the mediators of these disparities is crucial for targeted interventions.

Purpose of the Study:

• To quantify the mediation effects of neighborhood socioeconomic status (SES), insurance status, and quality of care on racial disparities in HNC survival.
• To identify key factors contributing to differential HNC outcomes among racial groups.

Main Methods:

• Retrospective cohort study using California Cancer Registry and discharge data (2010-2019).
• Analysis of adult HNC patients, examining mediators including insurance, SES, hospital quality, and guideline-compliant care.
• Quantification of mediation effects on overall survival (OS) and disease-specific survival (DSS) disparities.

Main Results:

• Black patients exhibited worse OS compared to White patients (HR 1.14).
• Socioeconomic status (SES) accounted for a substantial portion (49.0%) of the Black-White OS disparity.
• Health insurance, hospital quality, and guideline-compliant care also mediated disparities, with varying degrees for different racial groups and outcomes.

Conclusions:

• Socioeconomic status, insurance status, and quality of care are significant mediators of racial disparities in HNC survival.
• Interventions targeting SES, insurance reform, and quality of care are recommended to reduce HNC survival disparities.
• Findings highlight the complex interplay of social determinants and healthcare system factors in cancer outcomes.