Association of race and ethnicity with quality of care among head and neck cancer patients in California.

Background: There are significant racial disparities in head and neck cancer (HNC) outcomes. Racial differences in survival may be explained by differential access to high-quality care. The goal of this study was to evaluate the association of race and ethnicity with the quality of the treating hospital, and receipt of guideline-compliant care among HNC patients.

Methods: Retrospective cohort study of data from the California Cancer Registry dataset linked with discharge records and hospital characteristics. The study cohort included adult patients with HNC diagnosed between January 1, 2010, and December 31, 2019. Outcome measures included the quality of treating hospital, and NCCN guideline-compliant care.

Results: Black (OR 0.76, 95 % CI 0.67 to 0.85) and Hispanic (OR 0.68, 95 % CI 0.63 to 0.74) patients were less likely to be treated in top-quality hospitals compared with non-Hispanic White patients, after adjusting for demographic, and clinical factors. This association disappeared for Black patients, but persisted for Hispanic patients, after additionally adjusting for socioeconomic status and insurance status. Black patients with advanced-stage disease were less likely to be treated with dual-modality therapy (OR 0.82, 95 % CI 0.70 to 0.96), however, this association disappeared after adjusting for demographic, and clinical factors, and hospital quality.

Conclusion: There are significant racial and ethnic disparities in quality of care for patients with HNC. Our findings suggest that differential access to high-quality care may account for some of the racial disparities in HNC survival, and highlight the need for continued investigation into the drivers of racial disparities in HNC outcomes.