Table 3.
Subgroup analysis of older age (> 70 years) and high stroke risk (CHA2DS2-VASc-Socre ≥ 3 in all patients
| Total cohort | ||||
|---|---|---|---|---|
| SR [n (%)] | POAF [n (%)] | HR [95% CI] | p value | |
| Age | ||||
| Age ≤ 70 | 159 | 53 | ||
| Composite endpoint | 29 (18.2) | 14 (26.4) | 1.6 [0.81; 3.00] | 0.18 |
| All-cause mortality | 12 (7.6) | 6 (11.3) | 1.5 [0.55; 4.07] | 0.43 |
| Stroke | 5 (3.1) | 4 (7.6) | 2.5 [0.65; 9.53] | 0.19 |
| Rehospitalization | 14 (8.8) | 7 (13.2) | 1.7 [0.68; 4.39] | 0.25 |
| Age > 70 | 171 | 103 | ||
| Composite endpoint | 38 (22.2) | 32 (31.1) | 1.5 [0.94; 2.42] | 0.09 |
| All-cause mortality | 25 (14.6) | 26 (25.2) | 1.8 [1.06; 3.18] | 0.031 |
| Stroke | 9 (5.3) | 6 (5.8) | 1.2 [0.42; 3.29] | 0.77 |
| Rehospitalization | 5 (2.9) | 8 (7.8) | 2.8 [0.91; 8.55] | 0.07 |
| Stroke risk | ||||
| CHA2DS2-VASc-score < 3 | 121 | 55 | ||
| Composite endpoint | 15 (12.4) | 8 (14.6) | 1.2 [0.49; 2.78] | 0.74 |
| All-cause mortality | 4 (3.3) | 6 (10.9) | 3.2 [0.89; 11.39] | 0.08 |
| Stroke | 4 (3.3) | 1 (1.8) | 0.6 [0.06; 4.95] | 0.59 |
| Rehospitalization | 7 (5.8) | 2 (3.6) | 0.7 [0.14; 3.41] | 0.65 |
| CHA2DS2-VASc-score ≥ 3 | 209 | 101 | ||
| Composite endpoint | 52 (24.9) | 38 (37.6) | 1.7 [1.09; 2.53] | 0.018 |
| All-cause mortality | 33 (15.8) | 26 (25.7) | 1.7 [1.03; 2.88] | 0.039 |
| Stroke | 10 (4.8) | 9 (8.9) | 2.0 [0.81; 4.94] | 0.13 |
| Rehospitalization | 12 (5.7) | 13 (12.9) | 2.5 [1.14; 5.50] | 0.022 |
HR, hazard ratio, POAF, perioperative atrial fibrillation, SR, sinus rhythm
Bold value indicates p-values < 0.05 were considered statistically significant