Table 1. Baseline Characteristic of the Study Population According to Their ECG LBBB Diagnosis.
| Characteristic | With LBBB (n = 42) | Without LBBB (n = 1,646) | Total (n = 1,688) |
|---|---|---|---|
| Male, n (%) | 17 (40.5) | 669 (40.6) | 686 (40.6) |
| Age, y (mean ± SD) | 74.0 ± 8.4* | 69.2 ± 8.3 | 69.4 ± 8.3 |
| Atherosclerosis, n (%) | 13 (31.0)* | 268 (16.3) | 281 (16.6) |
| Hypertension, n (%) | 23 (54.8) | 720 (43.7) | 743 (44.0) |
| Diabetes, n (%) | 4 (9.5) | 101 (6.1) | 105 (6.2) |
| Kidney disease, n (%) | 2 (4.8) | 44 (2.7) | 46 (2.7) |
| COPD, n (%) | 2 (4.8) | 194 (11.8) | 196 (11.6) |
* P < 0.05; COPD: Chronic obstructive pulmonary disease.