Characteristics of Study Patients and Prevalence of 2002 American College of Cardiology/American Heart Association Guideline Criteria
| Finding | Percent with finding (no. of patients with positive troponin-I with finding) |
|---|---|
| Age (years) | 57.4 ±13.6 |
| Sex | |
| Male | 53 |
| Female | 47 |
| Subjective symptoms | |
| Chest pain | 99 (7) |
| Shortness of breath | 5 (0) |
| Syncope/near syncope | 3 (0) |
| Arm pain | 2 (0) |
| Palpitations | 1 (0) |
| Nausea | 1 (0) |
| Risk level | |
| ACC/AHA guideline | |
| Low | 13 |
| Intermediate | 2 |
| High | 85 |
| Clinical judgment | |
| High | 47 |
| Low | 53 |
| History of CAD | 34 (6) |
| History of diabetes mellitus | 22 (5) |
| Positive troponin-I within 30 days | 2 (7) |
| Rest pain | 59 (5) |
| Duration >20 minutes or increased tempo of pain | 64 (6) |
| New CP similar to previous anginal episode | 15 (2) |
| New S-T depression or bundle branch block | 6 (1) |
| T-wave inversions with CP | 10 (2) |
| New onset pulmonary edema (rales on exam) | 3 (0) |
| New mitral regurgitant murmur | 3 (1) |
| Abnormal vital signs (tachycardia, bradycardia, hypotension) | 12 (2) |
| Fixed Q-waves on ECG | 12 (3) |
| T-wave inversions in lateral leads with large R-waves | 21 (4) |
| Previous use of daily aspirin | 41 (4) |
| Normal ECG | 44 (1) |
| Reproducible chest pain | 1 (0) |
| Cocaine use | 0 (0) |
ACC/AHA, American College of Cardiology/American Heart Association; CAD, coronary artery disease; CP, chest pain; ECG, electrocardiogram.