Formulations of Job Strain and Psychological Distress: A Four-Year Longitudinal Study in Japan

Details

• Personal Author:
  Kawakami N ; Li J ; Matthews TA ; Robbins W ; Saiki M
• Description:
  Background: Different job strain formulations based on the Job Demand-Control model have been developed. This study evaluated longitudinal associations between job strain and psychological distress and whether associations were influenced by six formulations of job strain, including quadrant (original and simplified), subtraction, quotient, logarithm quotient, and quartile based on quotient, in randomly selected Japanese workers. Methods: Data were from waves I and II of the Survey of Midlife in Japan (MIDJA), with a 4-year follow-up period. The study sample consisted of 412 participants working at baseline and had complete data on variables of interest. Associations between job strain at baseline and psychological distress at follow-up were assessed via multivariable linear regression, and results were expressed as β coefficients and 95% confidence intervals including R2 and Akaike information criterion (AIC) evaluation. Results: Crude models revealed that job strain formulations explained 6.93-10.30% of variance. The AIC ranged from 1475.87 to 1489.12. After accounting for sociodemographic and behavioral factors and psychological distress at baseline, fully-adjusted models indicated significant associations between all job strain formulations at baseline and psychological distress at follow-up: original quadrant (β: 1.16, 95% CI: 0.12, 2.21), simplified quadrant (β: 1.01, 95% CI: 0.18, 1.85), subtraction (β: 0.39, 95% CI: 0.09, 0.70), quotient (β: 0.37, 95% CI: 0.08, 0.67), logarithm quotient (β: 0.42, 95% CI: 0.12, 0.72), and quartile based on quotient (β: 1.22, 95% CI: 0.36, 2.08). Conclusion: Six job strain formulations showed robust predictive power regarding psychological distress over 4 years among Japanese workers. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety Stress, Psychological Surveys And Questionnaires
• Keywords:
  Author Keywords: Demand-control Model Job Strain Job Stress Longitudinal Study Occupational Psychology Occupational Stress Psychological Distress Psychological Stress Questionnaires
• ISSN:
  2093-7911
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  59-65
• Volume:
  15
• Issue:
  1
• NIOSHTIC Number:
  nn:20069114
• Citation:
  Saf Health Work 2024 Mar; 15(1):59-65
• Contact Point Address:
  Jian Li, Department of Environmental Health Sciences, Fielding School of Public Health, School of Nursing, University of California, Los Angeles. 650 Charles E Young Dr. South, Los Angeles, CA 90095
• Email:
  jianli2019@ucla.edu
• Federal Fiscal Year:
  2024
• Performing Organization:
  University of California Los Angeles
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Safety and Health at Work
• End Date:
  20270630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:caef3f4b788b635f12513dea8493ed54796ea43d588260265419ee3390a479b7df2392e447bad6c1740137c21858b1d81a63b97166a1fb3d694be52986ca9b51
• Download URL:
  https://stacks.cdc.gov/view/cdc/207652/cdc_207652_DS1.pdf
• File Type:
  [PDF - 511.66 KB ]