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Temporal relationships between job strain and low-back pain
Stockholm University, Faculty of Social Sciences, Stress Research Institute.
Stockholm University, Faculty of Social Sciences, Stress Research Institute.
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Number of Authors: 6
2017 (English)In: Scandinavian Journal of Work, Environment and Health, ISSN 0355-3140, E-ISSN 1795-990X, Vol. 43, no 5, 396-404 p.Article in journal (Refereed) Published
Abstract [en]

Objectives Psychosocial working conditions are suggested risk factors for low-back pain, but it is unclear whether these associations are causal. The present study examined whether there are lagged and bidirectional associations between job strain and low-back pain and further controlled for unmeasured time-invariant confounding.

Methods The study was based on four biennial waves of data from the Swedish Longitudinal Occupational Survey of Health (SLOSH), including 3084 men and women. Cross-lagged analyses using structural equation modeling (SEM) were conducted on job strain, a combination of high job demands and low control, and any as well as low-back pain severity (how much any problems affected the respondents life). Analogous SEM (dynamic panel) models with fixed effects were also fitted to remove confounding from time-invariant factors (such as non-observed individual and environmental factors, eg, genetics, childhood conditions, personality).

Results The SEM models indicated bidirectional associations between job strain and any back pain over a 2-year time lag (β=0.21 and 0.19, P<0.05), when adjusting for a range of covariates. Job strain was also associated with an increase in low-back pain severity and vice versa. However, the SEM models with fixed-effects showed no statistically significant lagged relationships between job strain and any or low-back pain severity (β=-0.05 and β=0.00, respectively).

Conclusions This study suggests that associations between job strain and low-back pain with a lag of years may be due to residual confounding by time invariant characteristics. Further studies are, however, needed to elucidate short-term relationships.

Place, publisher, year, edition, pages
2017. Vol. 43, no 5, 396-404 p.
Keyword [en]
cross-lagged panel analysis, fixed effect, longitudinal study, occupational health, psychosocial work environment, structural equation modeling, work stress
National Category
Environmental Health and Occupational Health
Identifiers
URN: urn:nbn:se:su:diva-147203DOI: 10.5271/sjweh.3654ISI: 000408753300002OAI: oai:DiVA.org:su-147203DiVA: diva2:1142117
Available from: 2017-09-18 Created: 2017-09-18 Last updated: 2017-09-18Bibliographically approved

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Magnusson Hanson, Linda L.Peristera, ParaskeviWesterlund, Hugo
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CiteExportLink to record
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Citation style
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