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Questionnaire-based mechanical exposure indices for large population studies--reliability, internal consistency and

I Balogh1, P Orbaek, J Winkel

  • 1Department of Occupational and Environmental Medicine, Lund University, Lund University Hospital, Sweden. istvan.balogh@ymed.lu.se

Scandinavian Journal of Work, Environment & Health
|March 27, 2001
PubMed
Summary

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A new posture index effectively measures mechanical exposure related to shoulder-neck pain in the general population. This index improves upon job titles for better accuracy in large studies.

Area of Science:

  • Occupational Health
  • Epidemiology
  • Musculoskeletal Disorders

Background:

  • Shoulder-neck pain is a common issue in the general population.
  • Accurate assessment of mechanical exposure is crucial for understanding its development.
  • Existing methods may lead to misclassification of exposure.

Purpose of the Study:

  • To develop and validate indices for mechanical exposure in the shoulder-neck region.
  • To assess the relationship between mechanical exposure and shoulder-neck pain over one year.
  • To improve exposure assessment in large population studies.

Main Methods:

  • A 1-year prospective study of 14,556 individuals aged 45 or 65.
  • A comprehensive questionnaire assessed mechanical exposure (positions, movements, manual handling).

Related Experiment Videos

  • Exposure indices were constructed based on mechanistic theories and factor analysis; test-retest stability was evaluated.

    • Main Results:

    • Developed indices demonstrated good test-retest stability and internal consistency.
    • A posture index showed a significant exposure-effect relationship with shoulder-neck pain.
    • A lifting index was not associated with pain when adjusted for posture; job titles caused misclassification.

    Conclusions:

    • The posture index is recommended for assessing mechanical exposure and its link to shoulder-neck pain.
    • Utilizing this index reduces misclassification risk compared to using job titles in population studies.
    • This validated index can aid in analyzing the interplay of mechanical and psychosocial factors in shoulder-neck pain.