Social support modifies association between forward bending of the trunk and low-back pain: Cross-sectional field study of blue-collar workers

Morten Villumsen, Andreas Holtermann, Afshin Samani, Pascal Madeleine, Marie Birk Jørgensen

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Abstract

OBJECTIVES: This study aimed to investigate the association between forward bending of the trunk and low-back pain intensity (LBPi) among blue-collar workers in Denmark as well as whether the level of social support modifies the association.

METHODS: In total, 457 workers were included in the study. The forward bending of ≥ 30° was computed from accelerometer recordings for several consecutive days during work, categorized into long (highest tertile) and short-moderate (remaining tertiles) duration. LBPi was measured on a 0-10 scale and categorized into low (≤ 5) and high (>5) pain. Self-reported social support was categorized into low, moderate, and high levels. Multi-adjusted logistic regressions estimated the association between forward bending and LBPi and the effect modification by social support.

RESULTS: Forward bending and LBPi were not significantly associated but modified by social support. Workers with low social support and long duration of forward bending had higher likelihood of high LBPi [odds ratio (OR) 2.97, 95% confidence interval (95% CI) 1.11-7.95] compared to workers with high social support and long duration of forward bending. Among workers with low social support, workers with long duration of forward bending had higher likelihood of high LBPi (OR 3.28, 95% CI 0.99-10.90) compared to workers with short-moderate duration of forward bending. Among workers with high social support, workers with long duration of forward bending had reduced likelihood of high LBPi (OR 0.39, 95% CI 0.16-0.95) compared to workers with short-moderate duration of forward bending.

CONCLUSIONS: Social support modifies the association between objectively measured forward bending and LBPi among blue-collar workers.

Original languageEnglish
JournalScandinavian Journal of Work, Environment & Health
Volume42
Issue number2
Pages (from-to)125-134
ISSN0355-3140
DOIs
Publication statusPublished - Mar 2016

Fingerprint

Low Back Pain
field of study
Accelerometers
Logistics
social support
pain
Cross-Sectional Studies
worker
confidence interval
Odds Ratio
Confidence Intervals
confidence
field study
Denmark
accelerometer
Logistic Models
recording
logistics
regression

Keywords

  • Accelerometry
  • Adult
  • Cross-Sectional Studies
  • Denmark
  • Female
  • Humans
  • Low Back Pain
  • Male
  • Middle Aged
  • Occupational Diseases
  • Posture
  • Risk Factors
  • Social Support
  • Journal Article
  • Research Support, Non-U.S. Gov't

Cite this

Villumsen, Morten ; Holtermann, Andreas ; Samani, Afshin ; Madeleine, Pascal ; Jørgensen, Marie Birk. / Social support modifies association between forward bending of the trunk and low-back pain : Cross-sectional field study of blue-collar workers. In: Scandinavian Journal of Work, Environment & Health. 2016 ; Vol. 42, No. 2. pp. 125-134.
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abstract = "OBJECTIVES: This study aimed to investigate the association between forward bending of the trunk and low-back pain intensity (LBPi) among blue-collar workers in Denmark as well as whether the level of social support modifies the association.METHODS: In total, 457 workers were included in the study. The forward bending of ≥ 30° was computed from accelerometer recordings for several consecutive days during work, categorized into long (highest tertile) and short-moderate (remaining tertiles) duration. LBPi was measured on a 0-10 scale and categorized into low (≤ 5) and high (>5) pain. Self-reported social support was categorized into low, moderate, and high levels. Multi-adjusted logistic regressions estimated the association between forward bending and LBPi and the effect modification by social support.RESULTS: Forward bending and LBPi were not significantly associated but modified by social support. Workers with low social support and long duration of forward bending had higher likelihood of high LBPi [odds ratio (OR) 2.97, 95{\%} confidence interval (95{\%} CI) 1.11-7.95] compared to workers with high social support and long duration of forward bending. Among workers with low social support, workers with long duration of forward bending had higher likelihood of high LBPi (OR 3.28, 95{\%} CI 0.99-10.90) compared to workers with short-moderate duration of forward bending. Among workers with high social support, workers with long duration of forward bending had reduced likelihood of high LBPi (OR 0.39, 95{\%} CI 0.16-0.95) compared to workers with short-moderate duration of forward bending.CONCLUSIONS: Social support modifies the association between objectively measured forward bending and LBPi among blue-collar workers.",
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Social support modifies association between forward bending of the trunk and low-back pain : Cross-sectional field study of blue-collar workers. / Villumsen, Morten; Holtermann, Andreas; Samani, Afshin; Madeleine, Pascal; Jørgensen, Marie Birk.

In: Scandinavian Journal of Work, Environment & Health, Vol. 42, No. 2, 03.2016, p. 125-134.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Social support modifies association between forward bending of the trunk and low-back pain

T2 - Cross-sectional field study of blue-collar workers

AU - Villumsen, Morten

AU - Holtermann, Andreas

AU - Samani, Afshin

AU - Madeleine, Pascal

AU - Jørgensen, Marie Birk

PY - 2016/3

Y1 - 2016/3

N2 - OBJECTIVES: This study aimed to investigate the association between forward bending of the trunk and low-back pain intensity (LBPi) among blue-collar workers in Denmark as well as whether the level of social support modifies the association.METHODS: In total, 457 workers were included in the study. The forward bending of ≥ 30° was computed from accelerometer recordings for several consecutive days during work, categorized into long (highest tertile) and short-moderate (remaining tertiles) duration. LBPi was measured on a 0-10 scale and categorized into low (≤ 5) and high (>5) pain. Self-reported social support was categorized into low, moderate, and high levels. Multi-adjusted logistic regressions estimated the association between forward bending and LBPi and the effect modification by social support.RESULTS: Forward bending and LBPi were not significantly associated but modified by social support. Workers with low social support and long duration of forward bending had higher likelihood of high LBPi [odds ratio (OR) 2.97, 95% confidence interval (95% CI) 1.11-7.95] compared to workers with high social support and long duration of forward bending. Among workers with low social support, workers with long duration of forward bending had higher likelihood of high LBPi (OR 3.28, 95% CI 0.99-10.90) compared to workers with short-moderate duration of forward bending. Among workers with high social support, workers with long duration of forward bending had reduced likelihood of high LBPi (OR 0.39, 95% CI 0.16-0.95) compared to workers with short-moderate duration of forward bending.CONCLUSIONS: Social support modifies the association between objectively measured forward bending and LBPi among blue-collar workers.

AB - OBJECTIVES: This study aimed to investigate the association between forward bending of the trunk and low-back pain intensity (LBPi) among blue-collar workers in Denmark as well as whether the level of social support modifies the association.METHODS: In total, 457 workers were included in the study. The forward bending of ≥ 30° was computed from accelerometer recordings for several consecutive days during work, categorized into long (highest tertile) and short-moderate (remaining tertiles) duration. LBPi was measured on a 0-10 scale and categorized into low (≤ 5) and high (>5) pain. Self-reported social support was categorized into low, moderate, and high levels. Multi-adjusted logistic regressions estimated the association between forward bending and LBPi and the effect modification by social support.RESULTS: Forward bending and LBPi were not significantly associated but modified by social support. Workers with low social support and long duration of forward bending had higher likelihood of high LBPi [odds ratio (OR) 2.97, 95% confidence interval (95% CI) 1.11-7.95] compared to workers with high social support and long duration of forward bending. Among workers with low social support, workers with long duration of forward bending had higher likelihood of high LBPi (OR 3.28, 95% CI 0.99-10.90) compared to workers with short-moderate duration of forward bending. Among workers with high social support, workers with long duration of forward bending had reduced likelihood of high LBPi (OR 0.39, 95% CI 0.16-0.95) compared to workers with short-moderate duration of forward bending.CONCLUSIONS: Social support modifies the association between objectively measured forward bending and LBPi among blue-collar workers.

KW - Accelerometry

KW - Adult

KW - Cross-Sectional Studies

KW - Denmark

KW - Female

KW - Humans

KW - Low Back Pain

KW - Male

KW - Middle Aged

KW - Occupational Diseases

KW - Posture

KW - Risk Factors

KW - Social Support

KW - Journal Article

KW - Research Support, Non-U.S. Gov't

U2 - 10.5271/sjweh.3549

DO - 10.5271/sjweh.3549

M3 - Journal article

C2 - 26828769

VL - 42

SP - 125

EP - 134

JO - Scandinavian Journal of Work, Environment & Health

JF - Scandinavian Journal of Work, Environment & Health

SN - 0355-3140

IS - 2

ER -