Primary Analysis: Coarsened Exact Matching (CEM) on age (dichotomized at ≥85 years), sex, and Medicaid status
Sensitivity Analysis 1: CEM on age, sex, Medicaid status, diagnosis, and ADL impairment
Sensitivity Analysis 2: CEM on age, sex, Medicaid status, diagnosis, and ADL impairment, with imputation of missing data
Sensitivity Analysis 3: CEM on age, sex, and Medicaid status, final costs discounted by Medicare disproportionate share hospital (DSH) and indirect medical education (IME) payment rates for Mount Sinai Hospital
Sensitivity Analysis 4: CEM on age, sex, Medicaid status, diagnosis, and ADL impairment, discounted for Medicare DSH and IME payment rates
Sensitivity Analysis 5: CEM on age, sex, and Medicaid status, excluding controls who refused HaH enrollment
Sensitivity Analysis 6: CEM on age, sex, Medicaid status, diagnosis, and ADL impairment, excluding controls who refused HaH enrollment