Electrocardiogram Abnormalities and the Risk of Out-of-Hospital Cardiac Arrest: A Nationwide Cohort Study.
BACKGROUND Electrocardiograms (ECGs) potentially represent strong risk predictors, but their role in risk stratification for out-of-hospital cardiac arrest (OHCA) is unclear. OBJECTIVE This study aimed to assess 5-year OHCA risk for different ECG abnormalities. METHODS Data on patients and their respective first-re...