TABLE 3.
Mortality and Appropriate Shock
| All-cause Mortality | Appropriate Shock | |||||||
|---|---|---|---|---|---|---|---|---|
| Events/Total Number |
Incidence rate* |
Model 1† HR (95% CI) |
Model 2‡ HR (95% CI) |
Events/Total Number |
Incidence rate* |
Model 1† HR (95% CI) |
Model 2‡ HR (95% CI) |
|
| Changes in LVEF§ | ||||||||
| Worsened | 20/70 | 20.0 | 1.48 (0.84–2.61) | 1.54 (0.87–2.75) | 1/48 | 2.3 | 0.41 (0.04–3.73) | 0.51 (0.05–5.30) |
| Unchanged | 59/253 | 11.7 | Reference | Reference | 20/219 | 6.9 | Reference | Reference |
| Improved | 17/215 | 3.8 | 0.31 (0.18–0.54) | 0.33 (0.18–0.59) | 6/197 | 2.2 | 0.33 (0.13–0.85) | 0.29 (0.11–0.78) |
*
Incidence rate calculated as per 100 person-years.
†
Model 1: Adjusted for age, sex, race, and baseline LVEF, and stratified by enrollment center.
‡
Model 2: Further adjusted for smoking status, body mass index, NYHA class, ischemic cardiomyopathy, atrial fibrillation, diabetes, hypertension, chronic kidney disease, and device type.
§
Changes in LVEF were categorized into 3 groups: worsened LVEF (absolute decrease in LVEF >5%), unchanged LVEF (absolute change in LVEF −5 to 5%), and improved LVEF (absolute increase in LVEF >5%).