Evidence map›Paper›PMID 29941657›Full record

ArticleOccupational and environmental medicine2018

Study of occupation and amyotrophic lateral sclerosis in a Danish cohort.

Aisha S Dickerson, Johnni Hansen, Marianthi-Anna Kioumourtzoglou, Aaron J Specht, Ole Gredal, Marc G Weisskopf

Abstract read
In one paragraph

Article in Occupational and environmental medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

18 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Military Service Roles and ALS Among Veterans: A Matched Case-Control Study.Annals of clinical and translational neurology · 2025
    Article
  3. Article
  4. Article
  5. Review
  6. Occupational history associates with ALS survival and onset segment.Amyotrophic lateral sclerosis & frontotemporal degeneration · 2023
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Atypical motor neuron disease with bent spine clinical onset and long survival carrying C9orf72 expansion.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021
    Article
  12. Study of Occupational Chromium, Iron, and Nickel Exposure and Amyotrophic Lateral Sclerosis in Denmark.International journal of environmental research and public health · 2020
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. 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

6 authors.

Aisha S DickersonDepartment of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA.ORCID 0000-0003-3929-9540
Johnni HansenDanish Cancer Society, Institute of Cancer Epidemiology, Copenhagen, Denmark.
Marianthi-Anna KioumourtzoglouDepartment of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, USA.
Aaron J SpechtDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA.
Ole GredalDanish Cancer Society, Institute of Cancer Epidemiology, Copenhagen, Denmark.
Marc G WeisskopfDepartment of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA.

Funding

Translational Research Support CoreP30ES000002 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI SUSAN A KORRICK · 1985 to 2026
$44.6M
Training Program in Environmental EpidemiologyT32ES007069 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI LADEN, FRANCINE · 1985 to 2024
$13.9M
Population-Based Study of Environmental Risk Factors for ALSR01ES019188 · NIEHS · HARVARD SCHOOL OF PUBLIC HEALTH · PI WEISSKOPF, MARC G · 2010 to 2014
$2.0M
NIEHS NIH HHS P30 ES000002NIEHS NIH HHS R01 ES019188NIEHS NIH HHS T32 ES007069
6 · The paper itself

Abstract

objectivesSeveral manuscripts have proposed associations between amyotrophic lateral sclerosis (ALS) and occupational toxicant exposures-not to mention physical activity and trauma/injury. Some have also reported associations in investigations of specific occupations. Using data from a prospective Danish cohort study, we investigated the association between employment in certain industries and ALS diagnosis.

methodsWe identified 1826 ALS cases who were 25 years old or less in 1964 and diagnosed from 1982 to 2013 from the Danish National Patient Registry then matched 100 population controls to each case based on birth year and sex. Demographic data were linked to the Danish Pension Fund to determine occupation history. Conditional logistic regression models were adjusted for socioeconomic status, marital status and residential location at the index date.

resultsThere was an increase in odds of ALS among men who worked in agriculture, hunting, forestry or fishing (adjusted OR (aOR)=1.21; 95% CI 1.02 to 1.45). There was also a positive association for men employed in construction (aOR=1.21; 95% CI 1.05 to 1.39). In women, a protective association was seen with employment in the cleaning industry (aOR=0.69; 95% CI 0.52 to 0.93).

conclusionsOur study shows various occupations with exposure to toxicants, such as diesel exhaust and lead, and strenuous physical activity associated with increased odds of ALS in men. Future studies should have a particular focus on gathering detailed information on physical exertion and toxicant exposures specific to certain job tasks.

Indexed as

AdultAgedAmyotrophic Lateral SclerosisDenmarkFemaleHumansIncidenceLogistic ModelsMaleMiddle AgedOccupational DiseasesOccupational ExposureOdds RatioProspective StudiesRegistriesRisk Factorsamyotrophic lateral sclerosisenvironmentepidemiologyinternational occupational healthneurodegeneration

Identifiers

PMID29941657
PMCPMC6445390

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.