Figure 2. Kaplan‐Meier estimates of survival by presence of absence of atrial fibrillation or atrial flutter (AF/AFL) on presenting ECG.

This figure demonstrates Kaplan‐Meier survival estimates at 30 days for patients stratified by presence (n=46) or absence (n=841) of AF/AFL on the presenting ECG. A total of 27 patients (59%) with AF/AFL on their presenting ECG expired, as compared to 181 (21%) of 841 patients without AF/AFL (P<0.001).