Thirty day mortality rates examine patients who have (1) had a heart attack (Acute Myocardial Infarction - AMI) (2) experienced heart failure or (3) had pneumonia and then die within 30 days of their hospital admission date. The cause of death need not be for the same reason as the initial hospital admission. High mortality rates over time warrant investigation into the quality of care provided.
"Readmission" is when patients who have had a recent stay in the hospital go back into a hospital. The graphs shows how often patients are readmitted within 30 days of discharge from a previous hospital stay for heart attack, heart failure, or pneumonia. Patients may have been readmitted back to the same hospital or to a different hospital or acute care facility. They may have been readmitted for the same condition as their most recent hospital stay, or for a different reason.