Association of Health Insurance Literacy on Financial Toxicity Among Adolescent and Young Adult Cancer Patients

We explored how sociodemographics and health insurance literacy (HIL) are associated with financial toxicity (FT) among adolescent and young adult (AYA) cancer patients using linear regression. Participants (<i>N</i> = 86; ages: 18-39) diagnosed with cancer in the past year completed baseline surveys of an intervention trial assessing HIL (range: 4-36, lower scores = worse literacy) and the COmprehensive Score for financial Toxicity (COST; range: 0-44, lower scores = higher toxicity). Policyholders had higher FT (β = -5.24, <i>p</i> = 0.02). Among AYAs aged 26-39, each one-point HIL increase correlated with a 0.55 increase in COST score (<i>p</i> = 0.05). Improving HIL could address FT among AYAs aged 26-39, suggesting a potential target for intervention.