Table 4 Patient characteristics by BNP centile.
| Characteristic | BNP centile | p Value | |
|---|---|---|---|
| <50th (n = 172) | >50th (n = 173) | ||
| ICD therapy† | 17 (10%) | 46 (27%) | 0.006* |
| Age (years) | 61 (11) | 65 (13) | 0.020* |
| Men | 141 (82%) | 147 (85%) | 0.57 |
| History of CHF | 122 (71%) | 152 (88%) | 0.0012* |
| CAD | 121 (70%) | 125 (72%) | 0.76 |
| Dilated CM | 33 (19%) | 26 (15%) | 0.59 |
| NYHA III/IV | 40 (23%) | 73 (42%) | 0.006* |
| LVEF (%) | 30 (14) | 23 (11) | 0.0010* |
| β Blocker | 121 (70%) | 123 (71%) | 0.99 |
| Amiodarone | 48 (28%) | 79 (46%) | 0.015* |
| ACE inhibitor | 114 (66%) | 107 (62%) | 0.68 |
| Creatinine (μmol/l) | 106 (71) | 124 (80) | 0.032* |
*Significant difference; †comparison of ICD therapy by time to event analysis versus log rank test (fig 1).