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Physical demand at work and sick leave due to low back pain: a cross-sectional study

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

DOI

  1. Early occupational intervention for people with low back pain in physically demanding jobs: A randomized clinical trial

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Vis graf over relationer

OBJECTIVES: To investigate if self-reported high physical demand at work, objective physical workload using a job exposure matrix (JEM) and fear-avoidance beliefs are associated with reported sick leave in the previous year in persons with low back pain (LBP). Second, to investigate if the effects of fear-avoidance and self-reported high physical demand at work on sick leave are modified by the objective physical workloads.

SETTINGS: Participants were recruited from general practice and by advertisement in a local newspaper.

PARTICIPANTS: 305participants with a current period of 2-4 weeks LBP and self-reported difficulty in maintaining physically demanding jobs due to LBP were interviewed, clinically examined and had an MRI at baseline.

MAIN OUTCOME MEASURES: Independent variables were high fear-avoidance, self-reported high physical demand at work and objective measures of physical workloads (JEM). Outcome was self-reported sick leave due to LBP in the previous year. Logistic regression and tests for interaction were used to identify risk factors and modifiers for the association with self-reported sick leave.

RESULTS: Self-reported physically demanding work and high fear-avoidance were significantly associated with prior sick leave due to LBP in the previous year with OR 1.75 95% CI (1.10 to 2.75) and 2.75 95% CI (1.61to 4.84), respectively. No objective physical workloads had significant associations. There was no modifying effect of objective physical workloads on the association between self-reported physical demand at work/high fear-avoidance and sick leave.

CONCLUSIONS: Occupational interventions to reduce sick leave due to LBP may have to focus more on those with high self-reported physical demands and high fear-avoidance, and less on individuals with the objectively highest physical workload.

TRIAL REGISTRATION NUMBER: NCT02015572; Post-results.

OriginalsprogEngelsk
TidsskriftBMJ Open
Vol/bind9
Udgave nummer5
Sider (fra-til)e026917
ISSN2044-6055
DOI
StatusUdgivet - 22 maj 2019

Bibliografisk note

© Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.

ID: 57539367