Characteristic | ST segment depression | p Value | ||
---|---|---|---|---|
None (n = 4160) | 1 mm (n = 3098) | ⩾2 mm (n = 1590) | ||
Continuous variables presented as median (25th, 75th centile). | ||||
BP, blood pressure; CABG, coronary artery bypass graft surgery; CAD, coronary artery disease; COPD, chronic obstructive pulmonary disease; MI, myocardial infarction; NZ, New Zealand; PTCA, percutaneous transluminal coronary angioplasty; PVD, peripheral vascular disease. | ||||
Age (years) | 63 (53, 71) | 66 (57, 73) | 68 (60, 75) | <0.01 |
Women | 33.5% | 37.3% | 31.6% | <0.01 |
Heart rate (beats/min) | 71 (61, 81) | 75 (65, 85) | 80 (70, 94) | <0.01 |
Systolic BP (mm Hg) | 135 (120, 150) | 140 (122, 155) | 140 (120, 155) | <0.01 |
Diastolic BP (mm Hg) | 80 (70, 89) | 80 (70, 90) | 80 (70, 90) | <0.01 |
Hypertension | 45.6% | 48.9% | 50.3% | <0.01 |
Diabetes | 17.3% | 19.2% | 19.8% | 0.03 |
Family history of CAD | 42.1% | 38.8% | 36.7% | <0.01 |
Hypercholesterolaemia | 41.7% | 43.0% | 41.9% | 0.51 |
Congestive heart failure | 5.0% | 7.4% | 8.4% | <0.01 |
Previous angina | 74.8% | 73.7% | 74.0% | 0.55 |
Previous MI | 31.1% | 29.3% | 34.8% | <0.01 |
Previous PTCA | 12.4% | 9.5% | 6.8% | <0.01 |
Previous CABG | 11.2% | 11.7% | 8.4% | <0.01 |
COPD | 2.8% | 2.6% | 3.6% | 0.12 |
PVD | 6.2% | 8.4% | 11.3% | <0.01 |
Enrolment MI | 35.2% | 43.0% | 58.9% | <0.01 |
Regions | <0.01 | |||
USA | 58.8% | 26.6% | 14.6% | |
Canada | 55.5% | 28.0% | 16.5% | |
Europe | 40.6% | 38.7% | 20.7% | |
Australia/NZ | 42.6% | 42.1% | 15.3% |