Document Detail

Effect of Type A behavior on exercise test outcome in coronary artery disease.
MedLine Citation:
PMID:  2196775     Owner:  NLM     Status:  MEDLINE    
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.
W C Siegel; M A Hlatky; D B Mark; J C Barefoot; F E Harrell; D B Pryor; R B Williams
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The American journal of cardiology     Volume:  66     ISSN:  0002-9149     ISO Abbreviation:  Am. J. Cardiol.     Publication Date:  1990 Jul 
Date Detail:
Created Date:  1990-08-21     Completed Date:  1990-08-21     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0207277     Medline TA:  Am J Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  179-82     Citation Subset:  AIM; IM    
Department of Medicine, Duke University Medical Center, Durham, North Carolina 27710.
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MeSH Terms
Coronary Disease / physiopathology*,  psychology
Exercise Test*
Heart Rate
Middle Aged
Sensitivity and Specificity
Type A Personality*
Grant Support

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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