What question did this study set out to answer?

This research aims to quantify exercise testing responses to predict coronary disease presence and severity.

February 1, 1979Circulation

Use of treadmill score to quantify ischemic response and predict extent of coronary disease.

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Randomized trial assesses treadmill score's ability to predict coronary disease presence and severity, indicating exercise response quality.

This research aims to quantify exercise testing responses to predict coronary disease presence and severity.
Conducted treadmill tests on 405 patients with coronary angiograms
Developed treadmill score using discriminant function analysis weighing ST depression and other factors
Evaluated predictive accuracy, true negative rate, and sensitivity of the treadmill score.
Treadmill score had a predictive accuracy of 87% for detecting coronary disease with lesions ≥50% narrowing
Sensitivity for coronary disease detection was 94% and 82% for severe disease
Test accuracy improved by 10-15% compared to standard treadmill test criteria.

Cohn et al. (1979) studied this question.

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Randomized trial assesses treadmill score's ability to predict coronary disease presence and severity, indicating exercise response quality.