Baseline Characteristics of 201 Patients
| Characteristic | Data |
|---|---|
| Age (y) | 63 ± 10 |
| Sex (M/F) | 153/48 |
| Coronary risk factors (n[%]) | |
| Diabetes mellitus | 66 (33) |
| Hypertension | 110 (56) |
| Hypercholesterolemia | 94 (47) |
| Hyperuricemia | 31 (15) |
| Smoking | 131 (65) |
| Medications (n[%]) | |
| Nitrates | 155 (77) |
| β-blockers | 111 (55) |
| Calcium-channel blockers | 84 (41) |
| History of myocardial infarction (n[%]) | 63 (31) |
| Location of myocardial infarction (n[%]) | |
| Anterior | 34 (17) |
| Inferior | 29 (14) |
| History of angioplasty (n[%]) | 97 (48) |
| Number of diseased vessels (n[%]) | |
| 0 | 71 (35) |
| 1 | 57 (28) |
| 2 | 39 (19) |
| 3 | 34 (17) |
| Exercise test | |
| Peak heart rate (bpm) | 125 ± 21 |
| Peak systolic blood pressure (mm Hg) | 193 ± 32 |
| Peak pressure-rate product (×1,000) | 24.3 ± 6.3 |
| Diagnostic ST depression (%) | 44 (22) |
| Chest pain (%) | 39 (19) |
| Rest left ventricular ejection fraction (%)* | 55.5 ± 12.4 |
↵* Calculated with Quantitative Gated SPECT (Cedars-Sinai Medical Center, Los Angeles, CA).