FIG 1.

Flow diagram of study cohort: Medicare decedents with poor prognosis cancers (2007-2017). The study cohort was derived from administrative data from the Centers for Medicare & Medicaid Services 20% random sample of beneficiaries. Our final cohort included decedents age > 66 years with poor prognosis cancers who died between January 1, 2007, and December 31, 2017, with continuous fee-for-service Medicare part A, B, and D coverage ≥ 12 months before death. Patients living outside the United States or missing geographical data were excluded.