Interaction Between Postural Risk Factors and Job Strain on Self-Reported Musculoskeletal Symptoms Among Users of Video Display Units: A Three-Year Prospective Study

Details

• Personal Author:
  Brisson C ; Dionne CE ; Lapointe J ; Montreuil S
• Description:
  OBJECTIVE: This study investigated a possible interaction between postural risk factors and job strain on the incidence proportion of self-reported musculoskeletal symptoms in the shoulder-neck, lower back and upper limbs regions. METHODS: A cohort of white-collar workers (N=2431) was assessed with a self-administered questionnaire regarding postural risk factors and job strain at work. After a three-year follow-up, the six-month incidence proportion of musculoskeletal symptoms in the three body regions was measured with a modified version of the Nordic questionnaire. The analyses were stratified for gender. Interaction was defined as a departure from the addition of effects of individual risk factors, and its importance was estimated from the attributable proportion due to interaction and its 95% confidence interval (95% CI). RESULTS: A significant attributable proportion of 0.80 (95% CI 0.23-1.37) due to interaction between postural risk factors and job strain was observed for men in the lower back region. An indication of interaction was found for women with attributable proportions due to interaction of 0.44 (95% CI -0.06-0.94), 0.27 (95% CI -0.34-0.88) and 0.36 (95% CI -0.33-1.05) for the shoulder-neck, lower back, and upper limbs regions, respectively. CONCLUSIONS: The simultaneous presence of postural risk factors and job strain seems to increase the pathogenic effect of each exposure on the incidence proportion of musculoskeletal symptoms. This interaction effect is important for work intervention practices as success in decreasing any of these two risk factors could have the additional benefit of reducing up to 80% of new cases of musculoskeletal symptoms among participants exposed to both risk factors. [Description provided by NIOSH]
• Subjects:
  Men Musculoskeletal Diseases Musculoskeletal System Occupational Exposure Occupational Health Risk Assessment Risk Factors Safety Sex Characteristics Stress, Psychological Surveys And Questionnaires Women Workplace

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• Keywords:
  Author Keywords: Combined Effect Back Injuries Job Analysis Computer Work Etiology Job Strain Job Stress Karasek's Model Musculoskeletal Symptom Musculoskeletal System Musculoskeletal System Disorders Neck Injuries Occupational Disease Occupational Exposure Occupational Health Postural Risk Factor Posture Prospective Study Psychosocial Factor Questionnaires Risk Analysis Risk Factor Risk Factors Sex Factors Statistical Analysis Video Display Unit Worker Health Workload Work Performance Workplace Studies Work Practices

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• ISSN:
  0355-3140
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  134-144
• Volume:
  35
• Issue:
  2
• NIOSHTIC Number:
  nn:20035442
• Citation:
  Scand J Work Environ Health 2009 Mar; 35(2):134-144
• Contact Point Address:
  Julie Lapointe, Population Health Research Unit, Research Center of the Laval University Affiliated Hospital, 1050 Chemin Ste-Foy, Québec, Canada, G1S 4L8
• Email:
  julie.lapointe@uresp.ulaval.ca
• Federal Fiscal Year:
  2009
• Performing Organization:
  University of Quebec
• Peer Reviewed:
  True
• Start Date:
  20020930
• Source Full Name:
  Scandinavian Journal of Work, Environment & Health
• End Date:
  20060929
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:27f6a4f68d06d9569937603a33d5e3694481bfa65d38f02c433c87fb1ff6b7d13947069efbc1c651c8f288546d397e84274a82d2eff2cd3dbe04147afbada547
• Download URL:
  https://stacks.cdc.gov/view/cdc/187296/cdc_187296_DS1.pdf
• File Type:
  [PDF - 239.72 KB ]