Comorbidity and the association with 1-year mortality in hip fracture patients: can the ASA score and the Charlson Comorbidity Index be used interchangeably?

Both ASA and CCI show a similar stepwise association with 1-year mortality in hip fracture patients, despite measuring different factors and capturing different individuals at risk. Since the ASA score is already accessible for health care staff, it might be preferable to aid in prioritizing vulnerable hip fracture patients at risk of adverse outcomes.