Evidence map›Paper›PMID 31451926›Full record

ArticleInternational archives of occupational and environmental health2020

Occupational lifting predicts hospital admission due to low back pain in a cohort of airport baggage handlers.

Charlotte Brauer, Sigurd Mikkelsen, Ellen Bøtker Pedersen, Karina Lauenborg Møller, Erik Bruun Simonsen, Henrik Koblauch, Tine Alkjær, Karin Helweg-Larsen, Lau Caspar Thygesen

Open access · hybridAbstract read
In one paragraph

Article in International archives of occupational and environmental health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 31% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Incidence of and risk factors for lumbar disc herniation with radiculopathy in adults: a systematic review.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2025
    Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Influence of Load Knowledge on Biomechanics of Asymmetric Lifting.International journal of environmental research and public health · 2022
    Article
  8. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Charlotte BrauerDepartment of Occupational and Environmental Medicine, Bispebjerg University Hospital, Bispebjerg Bakke 23, 2400, Copenhagen, Denmark. charlotte.brauer@regionh.dk.ORCID 0000-0002-2109-3264
Sigurd MikkelsenDepartment of Occupational and Environmental Medicine, Bispebjerg University Hospital, Bispebjerg Bakke 23, 2400, Copenhagen, Denmark.
Ellen Bøtker PedersenDepartment of Occupational and Environmental Medicine, Bispebjerg University Hospital, Bispebjerg Bakke 23, 2400, Copenhagen, Denmark.
Karina Lauenborg MøllerNational Institute of Public Health, University of Southern Denmark, Studiestræde 6, 1455, Copenhagen, Denmark.
Erik Bruun SimonsenDepartment of Neuroscience and Pharmacology, Panum Institute, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark.
Henrik KoblauchDepartment of Biomedical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark.
Tine AlkjærDepartment of Biomedical Sciences, University of Copenhagen, Blegdamsvej 3B, 2200, Copenhagen, Denmark.
Karin Helweg-LarsenNational Institute of Public Health, University of Southern Denmark, Studiestræde 6, 1455, Copenhagen, Denmark.
Lau Caspar ThygesenNational Institute of Public Health, University of Southern Denmark, Studiestræde 6, 1455, Copenhagen, Denmark.
Bispebjerg Hospital · DKUniversity of Copenhagen · DKUniversity of Southern Denmark · DK

Funding

Gigtforeningen R101-A2003The Danish Working Environment Research Fund 24-2011-03
6 · The paper itself

Abstract

purposeTo examine if occupational lifting assessed as cumulative years as a baggage handler is associated with first-time hospital diagnosis or treatment for low back disorders.

methodsThis study is based on the Copenhagen Airport Cohort consisting of male baggage handlers performing heavy lifting every day and a reference group of unskilled men from the greater Copenhagen area during the period 1990-2012. We followed the cohort in the National Patient Register and Civil Registration System to obtain information on diagnoses, surgery, mortality, and migration. The outcomes were first-time hospital diagnosis or surgery for (1) lumbar disc herniation or (2) low back pain (LBP).

resultsBaggage handlers (N = 3473) had a higher incidence rate of LBP, but not of lumbar disc herniation, compared to the reference group (N = 65,702). Baggage handlers with longer employment had a higher incidence of LBP compared to baggage handlers with shorter employment. The linear association of cumulative years as a baggage handler on LBP was significantly increased with an incidence rate ratio of 1.16 (95% CI 1.07-1.25) for a 5-year increase of employment as baggage handler.

conclusionsIn this large cohort study, we found an increased incidence of LBP among baggage handlers compared to the reference group with indications of a dose-response relationship between years of employment and the outcome. For baggage handlers working on the apron, the incidence was particularly increased before introduction of technical lifting equipment, suggesting that preventive measures to reduce cumulative work load may have a positive effect.

Indexed as

AirportsAdultCohort StudiesDenmarkHospitalizationHumansIncidenceIntervertebral Disc DegenerationIntervertebral Disc DisplacementLiftingLongitudinal StudiesLow Back PainMaleMiddle AgedOccupational DiseasesRisk FactorsDose–response relationshipLongitudinal studyLow back disordersManual material handlingMusculoskeletal disorders

Identifiers

PMID31451926
PMCPMC6989598
OpenAlexW2970735540

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.