Table 1.
Patient Characteristics at Baseline
| Characteristic | Patient Procedures*, n | Patient Procedures, % |
|---|---|---|
| Age ≥ 75 years | 159 | 14.2 |
| Myocardial infarction in the past 6 months | 27 | 2.4 |
| Myocardial infarction more than 6 months ago | 469 | 42 |
| Unstable angina in the last 3 months | 37 | 3.3 |
| CCSA Class III in the last 2 weeks | 20 | 1.8 |
| CCSA Class IV in the last 2 weeks | 8 | 0.7 |
| Chronic stable angina | 274 | 24 |
| Acute pulmonary edema in last week | 5 | 0.4 |
| Acute pulmonary edema ever but not last week | 116 | 10.3 |
| Congestive heart failure in last week | 34 | 3.0 |
| Congestive heart failure ever but not in the last week | 247 | 22 |
| Emergency Surgery | 46 | 4.1 |
| Rhythm other than sinus | 112 | 10.0 |
| Normal sinus rhythm with premature atrial contractions | 145 | 12.9 |
| More than 5 premature ventricular contractions per minute ever | 164 | 14.6 |
| Poor general medical status† | 179 | 16 |
| Diabetes Mellitus | 291 | 26 |
| Hypertension | 696 | 62 |
| Suspected critical aortic stenosis | 0 | 0 |
*
Includes 1121 procedures in 1000 patients.
†
See text for definition.