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Type A behavior pattern in a German sample of post-infarction patients below age 40
Activitas Nervosa Superior
|January 1, 1982
Summary
Type A behavior, characterized by hostility and loud speech, is common in younger coronary patients but lacks specificity. No significant physiological or cardiological differences were found between Type A and Type B coronary subjects.
Area of Science:
- Cardiology
- Psychosomatic Medicine
- Behavioral Science
Background:
- Type A behavior pattern (TABP) is a potential risk factor for coronary heart disease (CHD).
- Previous studies suggest a link between TABP and increased CHD incidence.
- The specificity and diagnostic value of TABP in younger populations require further investigation.
Purpose of the Study:
- To evaluate the prevalence and specificity of Type A behavior in coronary subjects under 40.
- To compare behavioral and physiological characteristics between Type A and Type B coronary patients and controls.
- To assess the association between Type A behavior and the severity of coronary atherosclerosis.
Main Methods:
- Case-control study comparing coronary subjects (<40 years) with healthy controls.
- Behavioral assessment including hostility and speech patterns during interviews.
- Measurement of physiological responses (heart rate, skin resistance, blood pressure) during tasks.
- Cardiological evaluation including assessment of coronary atherosclerosis severity.
Main Results:
- Type A behavior was predominant in coronary subjects under 40, but the Type A to Type B ratio was similar in cases and controls, questioning its specificity.
- Coronary cases exhibited significantly higher levels of hostility and loud/explosive speech compared to controls.
- No significant differences in heart rate, skin resistance, or blood pressure were observed between Type A and Type B coronary subjects during task performance.
- No differences in cardiological findings, including coronary atherosclerosis severity, were found between Type A and Type B coronary subjects.
Conclusions:
- The high prevalence of Type A behavior in young coronary patients may not be specific, as it is also observed in controls.
- Hostility and speech patterns are distinguishing behavioral features of coronary patients but do not correlate with immediate physiological responses or atherosclerosis severity.
- The study questions the direct etiological role of Type A behavior in the development of coronary atherosclerosis, particularly in younger individuals.
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