OS after relapse for patients with T-ALL, based on race and ethnicity, median household income, and insurance status. OS displayed by Kaplan-Meier curves for T-ALL stratified by (A) race and ethnicity, (B) area-based median household income based on ZIP code, and (C) insurance status. Legends display 5-year OS probability calculated by Kaplan-Meier method with Greenwood standard errors to determine 95% CI. The displayed P values are based on univariate Cox regression models.