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| Characteristic | Value |
|---|---|
| Age (y) | 69.1 ± 9.5 |
| Sex (male) | 20 (83) |
| LBBB | 11 (46) |
| QRS duration (ms) | 133.6 ± 25.7 |
| LV ejection fraction (%) | 30.8 ± 12.7 |
Values are given as mean ± SD or n (%).
LBBB = left bundle branch block; LV = left ventricle.
