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Objectives: Workplace management practices targeting risk of musculoskeletal disorders (MSDs) fail to reflect evidence that risk is affected by psychosocial as well as physical hazards. To promote improved practices in occupations where MSD risk is highest, better information is needed on how psychosocial hazards, combined with physical hazards, affect risk of workers in these occupations.
Methods: Survey ratings of physical and psychosocial hazards by 2329 Australian workers in occupations with high MSD risk were subjected to Principal Components Analysis. Latent Profile Analysis of hazard factor scores identified different combinations of hazards to which latent subgroups of workers were typically exposed. Survey ratings of frequency and severity of musculoskeletal discomfort or pain (MSP) generated a pre-validated MSP score and its relationship with subgroup membership was analysed. Demographic variables associated with group membership were investigated using regression modelling and descriptive statistics.
Results: Analyses identified three physical and seven psychosocial hazard factors and three participant subgroups with differing hazard profiles. Profile group differences were greater for psychosocial than physical hazards, and MSP scores out of 60 ranged from 6.7 for the low hazard profile (29% of participants) to 17.5 for the high hazard profile (21%). Differences between occupations in hazard profiles were not large.
Conclusions: Both physical and psychosocial hazards affect MSD risk of workers in high-risk occupations. In workplaces such as this large Australian sample where risk management has focused on physical hazards, actions targeting psychosocial hazards may now be the most effective way to reduce risk further.
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Source |
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http://dx.doi.org/10.1016/j.apergo.2023.104053 | DOI Listing |
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