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| Publications [#197784] of Daniel B. Mark
Papers Published
- WC Siegel, MA Hlatky, DB Mark, JC Barefoot, FE Harrell Jr, DB Pryor, RB Williams Jr, Effect of Type A behavior on exercise test outcome in coronary artery disease.,
The American journal of cardiology, vol. 66 no. 2
(July, 1990),
pp. 179-82, ISSN 0002-9149
(last updated on 2011/11/29)
Abstract:
The outcome of the diagnostic exercise test depends on such patient-related factors as age, maximum exercise heart rate, exercise time and severity of the underlying coronary artery disease (CAD). This study examined the hypothesis that type A behavior would affect the amount of effort expended, as indicated by the exercise time and the maximum heart rate achieved, thereby resulting in differences in exercise test outcome. A total of 1,260 patients with suspected CAD, all of whom had coronary angiography, a structured interview to assess type A behavior and a treadmill exercise test, participated. Of these patients, 818 (65%) had significant CAD, and 852 (68%) were type A. There were no differences between type A and B patients in either maximum heart rate or total exercise time. Among both type A and B subjects, 36% of treadmill tests were positive. Exercise test sensitivity was similar for both groups (69% for type A vs 72% for type B, p = 0.39). Similarly, specificity was similar for both groups (87% for type A vs 80% for type B, p = 0.09). Results did not change after using logistic regression to control for potential confounding factors. Thus, type A behavior does not need to be taken into account when interpreting exercise test outcome.
Keywords:
Adult • Aged • Coronary Disease • Electrocardiography • Exercise Test* • Female • Heart Rate • Humans • Male • Middle Aged • Sensitivity and Specificity • Type A Personality* • physiopathology* • psychology
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