Table 1. Patient Characteristics.
Variables | All Patients | Microvascular (n = 611) | Macrovascular (n = 324) | p Value |
---|---|---|---|---|
Age in years | 63 ± 11 | 63 ± 11 | 65 ± 10 | 0.002 |
Men | 70% | 69% | 70% | 0.61 |
Ejection fraction (%) | 58 ± 14 | 57 ± 154 | 59 ± 13 | 0.06 |
LV end-diastolic diameter (mm) | 49 ± 7 | 49 ± 7 | 49 ± 7 | 0.69 |
LV end-systolic diameter (mm) | 33 ± 8 | 33 ± 8 | 33 ± 8 | 0.87 |
Ventricular septum (mm) | 11.8 + 2 | 11.6 + 2.5 | 12.0 + 2 | 0.02 |
LV posterior wall (cm) | 10.8 + 1.6 | 10.7 + 1.9 | 11.1 + 2.9 | 0.003 |
Pulmonary artery systolic pressures (mm Hg) | 33 ± 9 | 33 ± 9 | 34 ± 9 | 0.63 |
Baseline heart rate (bpm) | 73 ± 13 | 73 ± 13 | 74 ± 12 | 0.21 |
Baseline systolic blood pressure (mm Hg) | 131 ± 19 | 129 ± 18 | 133 ± 19 | 0.002 |
Baseline diastolic blood pressure (mm Hg) | 79 ± 10 | 79 ± 10 | 79 ± 13 | 0.96 |
Baseline pulse pressure (mm Hg) | 52 ± 18 | 51 ± 17 | 55 ± 18 | 0.0008 |
Stress heart rate (bpm) | 132 ± 24 | 131 ± 24 | 133 ± 23 | 0.31 |
Stress systolic blood pressure (mm Hg) | 172 ± 27 | 170 ± 25 | 176 ± 28 | 0.0001 |
Stress diastolic blood pressure (mm Hg) | 79 ± 11 | 79 ± 12 | 78 ± 10 | 0.31 |
Delta systolic blood pressure (mm Hg) | 41 ± 21 | 40 ± 20 | 42 ± 23 | 0.21 |
Stress pulse pressure (mm Hg) | 93 ± 25 | 91 ± 24 | 98 ± 25 | <0.0001 |
Chest pain on stress | 38% | 42% | 34% | 0.009 |
MET level achieved | 8.4 ± 3.4 | 8.3 ± 3.4 | 8.3 ± 3 | 0.98 |
Follow-up duration (years) | 7.4 ± 4.4 | 7.9 ± 4.3 | 6.9 ± 4.3 | 0.002 |
Number of deaths (%) | 210 (20%) | 117 (19%) | 80 (25%) | 0.05 |
LV, left ventricular; bpm, beats per minute; MET, metabolic equivalent.