Age, (years)† |
Gender |
Typical or Definite Angina Pectoris |
Atypical or Probable Angina Pectoris |
Nonanginal Chest Pain |
No Symptoms |
30-39 |
Male |
Intermediate |
Intermediate |
Low |
Very low |
Female |
Intermediate |
Very low |
Very low |
Very low |
|
40-49 |
Male |
High |
Intermediate |
Intermediate |
Low |
Female |
Intermediate |
Low |
Very low |
Very low |
|
50-59 |
Male |
High |
Intermediate |
Intermediate |
Low |
Female |
Intermediate |
Intermediate |
Low |
Very low |
|
60-69 |
Male |
High |
Intermediate |
Intermediate |
Low |
Female |
High |
Intermediate |
Intermediate |
Low |
Table1 Pretest Probability of CAD
Adapted from Gibbons RJ, Balady GJ, Beasley JW, et al: ACC/AHA guidelines for exercise testing: Executive summary. A report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Committee on Exercise Testing). Circulation 1997;96:345-354. * High probability, >90%; intermediate, 10%—90%; low, <10%; very low, <5%. † No data exist for patients aged >30 years or < 69 years, but it can be assumed that the prevalence of CAD increases with age. In a few cases, patients at the extremes of each decade may have probabilities slightly outside the high or low range.
Risk Group |
Annual Mortality Rate |
Low (>4) |
0.25% |
Intermediate (-10-4) |
1.25% |
High (>-10) |
5.0% |
Table2 Duke Treadmill Scoring System*
* The Duke treadmill score is calculated according to the following formula: Exercise time (min) -5 (max ST-segment deviation [in mm, during or after exercise]) -angina score where the score is 0 if there is no angina, 4 if angina occurs, and 8 if angina is the reason for stopping the test Adapted from Mark DB, Shaw L, Harrell FE Jr, et al: Prognostic value of a treadmill exercise score in outpatients with suspected coronary artery disease. N Engl J Med1991;325:849-853.