Variable | Survivors (n = 150) | Cardiac deaths (n = 26) | Non-cardiac deaths (n = 16) | p Value |
---|---|---|---|---|
Data are mean (SD) or percentages. | ||||
ABPI, ankle brachial pressure index; ACE-I, angiotensin converting enzyme inhibitor; BP, blood pressure; HR, heart rate; QTcmax, maximum heart rate corrected QT interval; QTD, QT dispersion; RR interval, heart rate variation in response to deep breathing; RR ratio, heart rate variation in response to standing. | ||||
QTD (ms) | 73.6 (27.5) | 88.4 (33.4) | 68.8 (27.1) | 0.034 |
QTcmax (ms) | 487.9 (37.8) | 521.9 (49.7) | 484.4 (38.7) | <0.001 |
Age (years) | 51.9 (8.6) | 57.1 (6.9) | 57.0 (9.4) | 0.003 |
Systolic BP (mm Hg) | 146.8 (20.8) | 158.5 (32.7) | 148.5 (30.2) | 0.063 |
Diastolic BP (mm Hg) | 91.5 (11.1) | 92.4 (13.8) | 88.5 (15.3) | 0.068 |
Pulse pressure (mm Hg) | 55.3 (15.7) | 66.0 (24.9) | 60.0 (22.2) | 0.583 |
ABPI | 1.08 (0.15) | 1.04 (0.21) | 1.12 (0.21) | 0.016 |
RR ratio | 1.26 (0.16) | 1.22 (0.18) | 1.24 (0.14) | 0.272 |
RR interval | 0.86 (0.14) | 0.83 (0.12) | 0.87 (0.13) | 0.579 |
Creatinine (mmol) | 77.9 (0.1) | 79.8 (18.7) | 80.5 (15.7) | 0.707 |
Potassium (mmol) | 4.3 (0.3) | 4.0 (0.4) | 4.1 (0.3) | 0.877 |
Sodium (mmol) | 138.7 (2.2) | 137.6 (3.0) | 139.2 (2.0) | 0.042 |
Glucose (mmol) | 12.2 (4.5) | 13.3 (4.0) | 13.1 (2.6) | 0.353 |
Resting HR (beats/min) | 79 (11) | 77 (13) | 76 (12) | 0.657 |
Cardiothoracic ratio | 43.3 (4.9) | 43.4 (3.3) | 42.6 (3.9) | 0.857 |
Family history | 45% | 46% | 60% | 0.526 |
Smoking | 37% | 50% | 33% | 0.560 |
β Blocker | 11% | 19% | 27% | 0.172 |
ACE-I | 0.7% | 0% | 6.7% | 0.081 |
Diuretic | 14% | 23% | 20% | 0.450 |
Calcium antagonist | 0.7% | 3.9% | 0% | 0.313 |
Men | 56% | 62% | 67% | 0.663 |