ATA = atrial tachyarrhythmia, CVA = cerebrovascular accident, ICU = intensive care unit, IQR = interquartile range, PNA = pneumonia.
*Postoperative ATAs as defined by the Society for Thoracic Surgery as post-operative atrial fibrillation or ATAs during postoperative hospital stay.
† Chi-squared test
‡ Two-sided Fisher’s Exact test
§ Mann-Whitney U test, two-sided normal approximation
¶ 11/13 pacemakers were placed for sick sinus syndrome, 2/13 were placed for complete heart block.
Table 5: Number at risk by year after standalone Cox-Maze IV and percentage of patients estimated to be in each state. Patients were assumed to be in one of three mutually exclusive states at each point during follow-up: alive and free from ATAs recurrence (composite endpoint), alive and having experienced first ATAs recurrence (CIF), or dead before ATAs recurrence (CIF).