Coronary‐prone behavior may be declining in Danish men and women

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Abstract
Four hundred males and four hundred females were randomly selected from the Danish population and received the Jenkins Activity Survey (JAS) on two occasions, once in 1988 and again in 1992. The JAS was rated by the standard procedure, providing a measure of the degree of time urgency and ambitiousness (Factor A), speed and impatience (Factor S), hard‐driving and competitiveness (Factor H) and job involvement (Factor J) shown by the subjects. The scores obtained for all four factors tended to be lower in 1992 than in 1988, and the differences were significant for Factor H. In addition, gender differences were observed for Factors A, S and J, with higher scores being obtained by males than by females. Age‐related differences were observed for Factors A and J. The findings indicate that Type A behaviors have declined during the past four years in the Danish adult population and that different strategies may be required for encouraging health behaviors in men and women.