Malignant disease cohort: adjusted probabilities of OS and TRM among children age 0 to 18 years who underwent first allogeneic HCT for malignant disease in the United States from 2006 to 2015. (A-B) Adjusted 5-year probability estimates (95% CIs) for OS (A) and TRM (B) stratified by neighborhood poverty group. (A) OS: low-poverty neighborhood, 52% (95% CI, 49% to 54%) vs high-poverty neighborhood, 53% (95% CI, 47% to 58%; P = .620) (B) TRM: 5-year cumulative incidence probability estimates: low-poverty neighborhood, 20% (95% CI, 18% to 22%) vs high-poverty neighborhood, 25% (95% CI, 20% to 30%; P = .037). (C-D) Adjusted 5-year probability estimates (95% CIs) for OS (C) and TRM (D) stratified by insurance. (C) OS: private insurance, 55% (95% CI, 52% to 58%) vs Medicaid insurance, 48% (95% CI, 44% to 52%) vs unknown, 51% (95% CI, 43% to 60%; P = .012) (D) TRM: private insurance, 19% (95% CI, 17% to 21%) vs Medicaid insurance, 24% (95% CI, 20% to 27%) vs unknown, 22% (95% CI 15% to 29%; P = .024).