Table 1.
Baseline characteristics
| Baseline variable | Total (N = 232) | New PPI (N = 44) | No PPI (N = 188) |
|---|---|---|---|
| Baseline clinical variables | |||
| Age, y | 83.3 ± 5.2 | 83.8 ± 6.1 | 83.1 ± 5.0 |
| Sex, female | 58.6% | 59.1% | 58.5% |
| STS-PROM Score, % | 3.8 ± 1.9 | 3.9 ± 2.2 | 3.8 ± 1.9 |
| Total Frailty Score | |||
| Median (Q1, Q3) | 1 (1, 2) | 1 (1, 2) | 1 (1, 2) |
| Baseline electrocardiographic variables | |||
| Persistent atrial fibrillation | 23.3% | 29.5% | 21.8% |
| AV conduction abnormality∗ | 33.7% | 60.5% | 25.0% |
| Presence of first-degree AV block | 9.9% | 25.0% | 6.4% |
| Presence of second-degree AV block - Type I | 0.9% | 2.3% | 0.5% |
| Presence of second-degree AV block - Type II | 0.4% | 2.3% | 0% |
| Presence of third-degree AV block | 0% | 0% | 0% |
| Presence of LAFB | 3.9% | 9.1% | 2.7% |
| Presence of LBBB | 6.5% | 2.3% | 7.4% |
| Presence of RBBB | 12.1% | 29.5% | 8.0% |
Abbreviations: AV, atrioventricular; LAFB, left anterior fascicular block; LBBB, left bundle branch block; PPI, permanent pacemaker implantation; RBBB, right bundle branch block; STS-PROM, Society of Thoracic Surgeons Predicted Risk of Operative Mortality.
∗
Conduction abnormalities are not mutually exclusive Values are mean ± SD or n (%) that reflect missing values.