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Job satisfaction and job security as moderators in the relationships among job demands, musculoskeletal symptoms, and work performance

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International Archives of Occupational and Environmental Health Aims and scope Submit manuscript

Abstract

Purpose

This study examined whether job satisfaction and job security moderate the path from physical demands and job strain to impaired work performance via musculoskeletal symptoms in the upper extremities (MSUE). Moderation effects on five paths were examined: (1) from job strain to MSUE; (2) from job strain to work performance; (3) from physical demands to MSUE; (4) from physical demands to work performance; (5) from MSUE to work performance.

Methods

This was a cross-sectional study of 669 full-time workers from 9 manufacturing and 3 healthcare facilities. Data were collected via health interviews, on-site physical exposure assessments, and computation of the Strain Index by ergonomists, and self-administered questionnaires on psychosocial factors. Structural equation modeling and zero-inflated negative binomial regression analysis were performed to examine the moderation effect on each path.

Results

Job satisfaction moderated the relationship between MSUE and impaired work performance (B = − 0.09, 95% CI: − 0.15, − 0.04) and job security moderated the relationship between physical demands and MSUE (B = − 0.64, 95% CI: − 1.17, − 0.11). Interaction between job satisfaction and MSUE was significant on both the occurrence (OR: 0.92, 95% CI: 0.87, 0.97) and the degrees of impaired work performance (mean ratio: 0.99, 95% CI: 0.97, 0.99), while the interaction between job security and physical demands was significant only on the degrees of MSUE (mean ratio: 0.94, 95% CI: 0.89, 0.99).

Conclusion

Job satisfaction and job security can, respectively, mitigate the adverse impacts of working with MSUE and physical demands on work performance. Workplace interventions to improve workers’ job satisfaction and job security can contribute to their musculoskeletal health and work performance.

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Data availability

The data are held at Safety and Health Assessment and Research for Prevention (SHARP) Program, Washington State Department of Labor and Industries. Procedures to access data from this study are available through contacting SHARP.

References

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Funding

This study was funded by the Hester McLaws scholarship, School of Nursing, University of Washington. The original study was funded by the U.S. National Institute for Occupational Safety and Health (U01OH07316) and the Washington State Department of Labor and Industries.

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Authors and Affiliations

Authors

Contributions

All authors contributed to the conceptualization, design, and interpretation of findings for this secondary data analysis study. Material preparation and data collection were performed by SK and SB; SK conducted the statistical analyses and delineation of results, as well as drafted the initial version of the manuscript. JRH supervised the statistical analysis. All authors contributed critical revisions to the manuscript.

Corresponding author

Correspondence to Suyoung Kwon.

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Conflict of interest

The authors declare no conflict of interest.

Ethical approval

SHARP in the Washington State Department of Labor and Industries approved access to and use of the data. As de-identified data were used for this secondary analysis, this study was not subject to human subjects review by the University of Washington Human Subjects Division (Institutional Review Board).

Consent to participate

Informed consent was obtained from all individual participants in the original study.

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Kwon, S., de Castro, A.B., Herting, J.R. et al. Job satisfaction and job security as moderators in the relationships among job demands, musculoskeletal symptoms, and work performance. Int Arch Occup Environ Health 96, 607–619 (2023). https://doi.org/10.1007/s00420-023-01955-y

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  • DOI: https://doi.org/10.1007/s00420-023-01955-y

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