Association of Social Vulnerability Index With Declining Recommended Surgical Treatment in Head and Neck Cancer Patients

Abstract

Objective: To investigate the impact of county-level social vulnerability on patients' decision to refuse recommended surgical treatment.

Methods: Retrospective cohort analysis conducted on HNSCC cases documented in the latest available SEER databases from 2000 to 2020; various demographic, including county of residence, and disease-related variables were collected. CDC's Social Vulnerability Index (SVI) was assigned based on patients' county of residence, and patients were subsequently categorized into four SVI quartiles. Pearson chi-square tests and binomial logistic regression was conducted to determine the impact of variables on patients' refusal of surgical treatment.

Results: Among 83,184 patients, 2.6% (2,165) refused surgical intervention recommended by their physician as part of treatment. Social vulnerability (higher SVI), male sex, older age, more advanced disease stage, belonging to non-Hispanic Black or Native Hawaiian/Asian Pacific Islander Race and Origin, and single marital status were associated with higher likelihood of refusing surgery.

Conclusion: SVI is a significant factor in the refusal of recommended surgical treatment in HNSCC patients. Advanced disease stages and social vulnerability appear to interplay, influencing treatment decisions. Culturally competent care and support for socially vulnerable patients may mitigate disparities in treatment acceptance, potentially improving survival outcomes.

Level of evidence: 3 Laryngoscope, 135:2062-2069, 2025.

Keywords: head and neck cancer; social determinants of health; social vulnerability index.