Table 4.
Clinical outcomes.
| Beta-blocker | Control | p-Value | |
|---|---|---|---|
| (n=572) (%) | (n=578) (%) | ||
| Left ventricular ejection fraction | |||
| One month, mean±SD | 51.1±11.4 | 49.8±11.7 | 0.15 |
| (n=316) | (n=332) | ||
| Six months, mean±SD | 52.8±11.2 | 50.0±12.4 | 0.03 |
| (n=189) | (n=191) | ||
| Seven days clinical outcomes | |||
| Death or myocardial infarction | 10/521 (2.0%) | 9/525 (1.7%) | 0.81 |
| All-cause mortality | 6/571 (1.1%) | 7/576 (1.2%) | 0.79 |
| Cardiac death | 5/571 (0.9%) | 7/576 (1.2%) | 0.57 |
| Myocardial infarction | 4/521 (0.8%) | 2/525 (0.4%) | 0.41 |
| One-year clinical outcomes | |||
| Death or myocardial infarction | 21/521 (4.2) | 22/525 (4.4) | 0.90 |
| All-cause mortality | 16/571 (3.0) | 19/576 (3.6) | 0.62 |
| Cardiac death | 11/571 (2.0) | 14/576 (2.6) | 0.56 |
| Myocardial infarction | 5/521 (1.0) | 4/525 (0.8) | 0.73 |
| Safety outcomes during hospitalization | |||
| Composite safety outcome | 22/520 (4.2) | 19/525 (3.6) | 0.61 |
| Ventricular tachycardia | 36/522 (6.9) | 32/527 (6.1) | 0.59 |
SD: standard deviation.
Safety outcome is the composite of cardiogenic shock, symptomatic bradycardia or hypotension. One-year efficacy outcomes are Kaplan-Meier estimates, compared with a log-rank test. Safety outcome and ventricular tachycardia are percentages, compared with a Chi-square test.