Demographics and clinical characteristics
| 2011 cohort (n=292) | 2014 cohort (n=500) | p-value | |
|---|---|---|---|
| Age, years | 67±14 | 68±14 | 0.33 |
| Male | 204 (70) | 352 (70) | 0.87 |
| Resident in London | 128 (35) | 132 (26) | <0.0001 |
| Heart rate, bpm | 71±23 | 68±12 | 0.01 |
| LVSD | 268 (92) | 404 (81) | <0.0001 |
| LVEF, % | 38±5 | 40±13 | 0.01 |
| Aetiology | |||
| Ischaemic | 105 (36) | 185 (37) | 0.81 |
| Idiopathic dilated cardiomyopathy | 55 (19) | 122 (25) | 0.08 |
| Primary valvular | 32 (11) | 64 (13) | 0.49 |
| Mixed | 29 (10) | 16 (3) | 0.0002 |
| Other | 51 (17) | 81 (16) | 0.69 |
| Not documented | 20 (7) | 32 (6) | 0.88 |
Data are n (%) unless stated otherwise. Data expressed as mean±standard deviation for continuous variables.
LVSD = left ventricular systolic dysfunction; SBP = left ventricular ejection fraction.