Table 1 Baseline characteristics
From: A new scoring system to stratify risk in unstable angina
Development phase [n:473] | Validation phase [n:242] | |||
|---|---|---|---|---|
n | % | n | % | |
Age [mean ± SD] | 63.5 ± 11.8 | 63.7 ± 11.2 | ||
Age ≥ 70 y | 159 | 33.6 | 80 | 33.1 |
Male sex | 316 | 66.8 | 167 | 69.0 |
Recent onset angina | 298 | 63.0 | 150 | 62.0 |
Progressive angina | 175 | 37.0 | 92 | 38.0 |
Hypertension | 325 | 68.7 | 155 | 64.0 |
Diabetes | 88 | 18.6 | 49 | 20.2 |
Hypercholesterolemia | 272 | 57.5 | 142 | 58.7 |
Current smokers | 196 | 41.4 | 114 | 47.1 |
Previous MI | 144 | 30.4 | 72 | 29.9 |
Previous PCI | 61 | 12.9 | 34 | 14.0 |
Previous CABG | 60 | 12.7 | 25 | 10.3 |
Medication before admission | ||||
Aspirin | 286 | 60.5 | 146 | 60.3 |
Beta-blockers | 202 | 42.7 | 119 | 49.2 |
Nitrates | 102 | 21.6 | 67 | 27.7 |
Calcium antagonists | 127 | 26.8 | 64 | 26.4 |
ACE-inhibitors | 129 | 27.3 | 71 | 29.3 |
ECG changes | ||||
ST deviation | 144 | 30.4 | 73 | 30.2 |
T wave inversion | 137 | 29.0 | 60 | 24.8 |
No changes | 192 | 40.6 | 109 | 45.0 |
Biochemical markers | ||||
Positive troponin test | 99 | 20.9 | 53 | 21.9 |
CRP ≥ 3 mg/L | 240 | 50.7 | 156 | 64.4 |
CRP ≥ 10 mg/L | 149 | 31.5 | 81 | 33.5 |