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June 10, 1974

Type A or B Behavior?

Author Affiliations

East Cleveland, Ohio

JAMA. 1974;228(11):1369. doi:10.1001/jama.1974.03230360017005

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To the Editor.—  In a previous letter (219:385, 1972), I noted that the personality stereotype described by the type A behavior pattern of Meyer Friedman and colleagues yielded inconsistent findings in their prospective study of coronary artery disease. Now, reevaluation has occurred from within.At the annual meeting of the American Psychosomatic Society on March 31, 1974, in Philadelphia, Jenkins, Zyzanski, and Rosenman called for a redefinition of type A. Their new description of the coronaryprone personality is that of an individual who is noncompetitive with his peers, in contrast with their original description of an individual with a profound inclination and eagerness to compete, with persistent desire for recognition and advancement. This revised profile is consistent with characterization of the coronary candidate as a phlegmatic individual (type B in the style of response) with low self-esteem (Exercise Testing and Exercise Training in Coronary Heart Disease. New York, Academic Press,