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Poster-discussion: Musculoskeletal disorders in specific occupations
Do physical or psychosocial factors at work predict multi-site musculoskeletal pain? A 4-year prospective study among industrial population
  1. Subas Neupane1,
  2. Pekka Virtanen1,
  3. Anna Siukola1,
  4. Helena Miranda2,
  5. Clas-Håkan Nygård1
  1. 1University of Tampere, Tampere, Finland
  2. 2FIOH, Helsinki, Finland

Abstract

Objectives Musculoskeletal pain at multiple sites is common among working-age people and it strongly increases work disability. Little is known of the work-related physical and psychosocial factors contributing to multi-site pain.

Methods Survey responses from 734 employees (518 blue- and 216 white-collar; 65% female) of a food processing company were collected twice, in 2005 and 2009. Information on musculoskeletal pain during the preceding week, and physical and psychosocial work exposures were obtained through a structural questionnaire. The risk of multi-site pain related to the single and joint effects of work exposures was estimated by gender and age-group with logistic regression.

Results At baseline, 56% had pain in more than one area, and 50% at 4-year follow-up. Forty percent of all employees had multi-site pain throughout the follow-up. Among those with multi-site pain at baseline, 69% had multi-site pain at follow-up. Both repetitive work and awkward work postures at baseline increased the risk of multi-site pain at follow-up by more than fourfold. Psychosocial factors (low job satisfaction, low team sprit and low possibilities to exert influence at work) also strongly predicted multi-site pain at follow-up, especially among younger workers and men. A strong dose-response relationship was detected between the number of exposures and the outcome.

Conclusions Musculoskeletal pain at multiple sites is a common and persistent phenomenon among industrial workers. Physical and psychosocial factors significantly contribute to multi-site pain. Prevention of multi-site pain with many-sided modification of work exposures is likely to reduce work disability.

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