Comparison of survivors and non-survivors
| Alive | Dead | p | |
|---|---|---|---|
| Number | 143 | 35 | |
| Mean (SD) age (years) | 51 (11) | 53 (11) | NS |
| Number in NYHA class | NS | ||
| II | 66 | 10 | |
| III | 60 | 21 | |
| IV | 17 | 4 | |
| Aetiology (n) | 0.05 | ||
| Ischaemic | 55 | 20 | |
| Non-ischaemic | 88 | 15 | |
| Mean (SD) ejection fraction (%) | 26 (11) | 23 (13) | NS |
| Mean (SD) peak V˙O2 (ml/kg/min) | 18.0 (5.5) | 16.0 (5.5) | 0.05 |
| Mean (SD) indexed peak V˙O2
(% predicted values) | 60 (16) | 52 (14) | 0.006 |
| Mean (SD) peak O2 pulse (ml) | 8.8 (3.0) | 8.4 (2.6) | 0.1 |
NYHA, New York Heart Association; V˙O2, oxygen consumption.