1 Introduction Unplanned hospital readmissions are a frequent and concerning outcome among older adults, with a substantial proportion experiencing readmission or death within one year of discharge [1-3]. For healthcare systems, unplanned 30-day readmissions are a focus of national quality improvements programs such as the Hospital Readmissions Reduction Program [4], as they may signal deficiencies in care quality, particularly in transitional and post-discharge support [5-7].