“…Sociodemographic and hospital-level characteristics. Sociodemographic and hospital-level characteristics were selected for inclusion in this study based on previous literature [25][26][27][28] and include age (less than 70, 70 years or more), gender (male, female), race/ethnicity (non-Hispanic white, non-Hispanic black, Hispanic and non-Hispanic other), Insurance type (Medicare, Medicaid, private and other), median household income national quartiles (quartiles 1-4), hospital region (northeast, Midwest, south, and west), hospital location (rural, urban non-teaching and urban teaching), patient disposition (routine discharge-discharge to home or self-care, transfer to a facility, died), admission type (elective versus non-elective), length of stay (5 days or less, more than 5 days) and Charlson comorbidity index (0-4, 5-7 and 8).…”