Dodson JA, et al. - In this prospective cohort study, researchers developed and validated an acute myocardial infarction (AMI) readmission risk model for older patients that accounted for functional impairments and was appropriate for use prior to hospital discharge. From 94 US hospitals, they recruited 3,006 patients (aged ≥ 75 years) hospitalized with AMI. All-cause readmission at 30 days was the outcome. Functional mobility, ejection fraction, chronic obstructive pulmonary disease, arrhythmia, acute kidney injury, first diastolic blood pressure, P2Y12 inhibitor use, and general health status were the eight variables that were incorporated in the final risk model. Functional mobility was identified as the strongest predictor of 30-day readmission in older adults following AMI. Patient-level factors failed to explain much of the variability in readmission risk in this population, which was evident by the modest discrimination observed.