Evidence map›Paper›PMID 26414854›Full record

ArticleEpidemiology (Cambridge, Mass.)2015

Military Service and Amyotrophic Lateral Sclerosis in a Population-based Cohort.

Marc G Weisskopf, Merit E Cudkowicz, Norman Johnson

Open access · hybridAbstract read
In one paragraph

Article in Epidemiology (Cambridge, Mass.), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
4.7field-weighted citation impact, top 5% 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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Environmental toxins in neurodegeneration - a narrative review.Neurological research and practice · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Study of Occupational Chromium, Iron, and Nickel Exposure and Amyotrophic Lateral Sclerosis in Denmark.International journal of environmental research and public health · 2020
    Article
  10. Review
  11. Article
  12. Article
  13. Heavy Metal Neurotoxicants Induce ALS-Linked TDP-43 Pathology.Toxicological sciences : an official journal of the Society of Toxicology · 2019
    Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Occupational formaldehyde and amyotrophic lateral sclerosis.European journal of epidemiology · 2017
    Article
  19. Article
  20. 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

3 authors at 2 institutions in 1 country.

Marc G WeisskopfFrom the aDepartment of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA; bDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA; cDepartment of Neurology, Massachusetts General Hospital, Boston, MA; and dCenter for Administrative Records and Applications, US Bureau of the Census, Washington, DC.
Merit E Cudkowicz
Norman Johnson
Creative Commons · USMuscular Dystrophy Association · US

Funding

Translational Research Support CoreP30ES000002 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI SUSAN A KORRICK · 1985 to 2026
$44.6M
Environmental Risk Factors for ALS in a Representative Sample of the USR56NS082105 · NINDS · HARVARD SCHOOL OF PUBLIC HEALTH · PI WEISSKOPF, MARC G · 2012 to 2012
$560k
NIEHS NIH HHS P30 ES000002NINDS NIH HHS NS 082105NINDS NIH HHS R56 NS082105
6 · The paper itself

Abstract

backgroundMilitary service has been suggested to be associated with an increased risk of amyotrophic lateral sclerosis (ALS), but only one prospective study-of a volunteer cohort-has examined this question.

methodsWe prospectively assessed the relation between service in the military and ALS mortality among participants in the National Longitudinal Mortality Study, a population-representative cohort of U.S. men and women surveyed from 1973 through 2002. Participant follow-up was conducted from 1979 through 2002 for ALS mortality. There were 696,743 men and 392,571 women who were 25 years old or more with military service data. In this group, there were 375 male ALS deaths and 96 female ALS deaths. Adjusted hazard ratios (HRs) were calculated using Cox proportional hazards.

resultsMen who served in the military had an increased adjusted ALS death rate [HR: 1.23; 95% confidence interval (CI): 0.98, 1.53] compared with those who did not serve. An increase in ALS mortality was found among those who served during World War II (HR: 1.47; 95% CI: 1.13, 1.91) but not during other time periods. This pattern of results was similar for women, but with larger confidence intervals (HR for military service: 1.26; 95% CI: 0.29, 5.59; HR for service during World War II: 2.03; 95% CI: 0.45, 9.05).

conclusionsMilitary personnel have an increased risk of ALS, which may be specific to certain service periods although there was no data on actual deployment. Because of the longer follow-up time for World War II veterans, we cannot rule out that increased risk for those who served during other periods would be seen with further follow-up.

Indexed as

AdultAgedAged, 80 and overAmyotrophic Lateral SclerosisCohort StudiesEnvironmental ExposureFemaleHumansLongitudinal StudiesMaleMiddle AgedMilitary PersonnelProportional Hazards ModelsProspective StudiesUnited StatesWorld War II

Identifiers

PMID26414854
PMCPMC4604116
OpenAlexW2342341291

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.