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A chronological decrease in type A behavior patterns among Japanese male workers in 1995-1999.

Masayo Kojima1, Teruo Nagaya, Hidekatsu Takahashi

  • 1Department of Health Promotion and Preventive Medicine, Nagoya City University Graduate School of Medical Sciences, Kawasumi, Nagoya, Japan. masayok@med.nagoya-cu.ac.jp

Journal of Occupational Health
|April 20, 2004
PubMed
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Japanese male workers showed a consistent decline in Type A behavior pattern (TABP) over a five-year period. This trend was observed across all age groups studied between 1995 and 1999.

Area of Science:

  • Occupational Health
  • Psychology
  • Sociology

Background:

  • Type A behavior pattern (TABP) is a recognized psychosocial construct.
  • Understanding temporal trends in TABP is crucial for public health initiatives.
  • Previous research has indicated shifts in behavioral patterns across populations.

Purpose of the Study:

  • To investigate the chronological changes in Type A behavior pattern (TABP) among Japanese male workers.
  • To analyze the trends of TABP over a five-year period (1995-1999).

Main Methods:

  • A longitudinal study design was employed.
  • A cohort of 21,711 Japanese male workers completed a TABP questionnaire between 1995 and 1999.
  • Repeated measures analysis of variance was used for data analysis, including a subset of 5,689 subjects with complete data.

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Main Results:

  • The mean TABP scores demonstrated a significant linear decrease year by year.
  • Both the effect of the year and age were statistically significant (p<0.001).
  • Time trends in TABP were consistent across different baseline age groups.

Conclusions:

  • Type A behavior pattern (TABP) significantly decreased among Japanese male workers from 1995 to 1999.
  • This decline was evident across all studied generations.
  • The findings suggest a societal shift in behavioral characteristics within the Japanese male workforce.