Neighborhood-level Social Determinants of Health Burden among AYA Cancer Patients and Impact on Overall Survival.

Abstract

Neighborhood socioeconomic deprivation has been linked to adverse health outcomes, yet it is unclear if neighborhood-level social determinants of health (SDOH) measures impact overall survival in adolescent and young adult (AYA) cancer patients. This study utilized a diverse cohort of AYA cancer patients (N = 10,261) seen at MD Anderson Cancer Center. Zip codes were linked to Area Deprivation Index (ADI) values, a validated neighborhood-level SDOH measure, with higher ADI representing worse SDOH. ADI was significantly worse (p < .05) for Black (61.7) and Hispanic (65.3), compared to White (51.2) patients. Analysis of ADI by cancer type showed significant differences, mainly driven by worse ADI in patients with cervical cancer (62.3) than other cancers. In multivariable models including sex, age at diagnosis, cancer diagnosis, and race/ethnicity, risk of shorter survival for people residing in neighborhoods with the least favorable ADI quartile was greater than those in the most favorable ADI quartile (HR: 1.09, 95% CI: 1.00-1.19, p = .043). AYA cancer patients with the worst ADI experienced a nearly 10% increase in risk of dying compared to those with more favorable ADI and this effect was strongest among White AYA survivors. Although the magnitude of the effect of ADI on survival was moderate, the presence of a relationship between neighborhood-level SDOH and survival among patients who received care at a tertiary cancer center suggests ADI is a meaningful predictor of survival. These findings provide intriguing evidence for potential interventions aimed at supporting AYA cancer patients from disadvantaged neighborhoods.