Table 1.

Characteristics of Study Patients and Prevalence of 2002 American College of Cardiology/American Heart Association Guideline Criteria

FindingPercent with finding (no. of patients with positive troponin-I with finding)
Age (years)57.4 ±13.6
Subjective symptoms
    Chest pain99 (7)
    Shortness of breath5 (0)
    Syncope/near syncope3 (0)
    Arm pain2 (0)
    Palpitations1 (0)
    Nausea1 (0)
Risk level
    ACC/AHA guideline
    Clinical judgment
History of CAD34 (6)
History of diabetes mellitus22 (5)
Positive troponin-I within 30 days2 (7)
Rest pain59 (5)
Duration >20 minutes or increased tempo of pain64 (6)
New CP similar to previous anginal episode15 (2)
New S-T depression or bundle branch block6 (1)
T-wave inversions with CP10 (2)
New onset pulmonary edema (rales on exam)3 (0)
New mitral regurgitant murmur3 (1)
Abnormal vital signs (tachycardia, bradycardia, hypotension)12 (2)
Fixed Q-waves on ECG12 (3)
T-wave inversions in lateral leads with large R-waves21 (4)
Previous use of daily aspirin41 (4)
Normal ECG44 (1)
Reproducible chest pain1 (0)
Cocaine use0 (0)
  • ACC/AHA, American College of Cardiology/American Heart Association; CAD, coronary artery disease; CP, chest pain; ECG, electrocardiogram.