Left ventricular ejection fraction in the adaptive servoventilation population with heart failure
| LVEF ≤45% | 47 (40%) |
| LVEF >45% | 46 (39%) |
| Not specified | 25 (21%) |
| Normal LV function (LVEF ≥55%) | 33 (28%) |
| Slightly reduced LV function (LVEF 45–54%) | 14 (12%) |
| Moderately reduced LV function (LVEF 30–44%) | 34 (29%) |
| Significantly reduced LV function (LVEF<30%) | 12 (10%) |
| Not specified | 25 (21%) |
LVEF: left ventricular ejection fraction; LV: left ventricular.