Evidence map›Paper›PMID 17641152›Full record

SynthesisAmerican journal of epidemiology2007

Head injury and amyotrophic lateral sclerosis.

Honglei Chen, Marie Richard, Dale P Sandler, David M Umbach, Freya Kamel

Open access · bronzeAbstract readMeta-Analysis
In one paragraph

Synthesis in American journal of epidemiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 136 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
136citing papers in PubMed, 7 pooled it
5.3field-weighted citation impact, top 4% 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

136 citing papers in PubMed, 7 syntheses or guidelines pooled it, 271 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Pooled it
  8. Severe head injury and amyotrophic lateral sclerosis.Amyotrophic lateral sclerosis & frontotemporal degeneration · 2013
    Trial
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Progression Independent of the Triggering Event in Neurologic Diseases.Neurology(R) neuroimmunology & neuroinflammation · 2025
    Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. Soccer (football) and brain health.Journal of neurology · 2024
    Review

76 more citing papers are in PubMed but not listed here.

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

5 authors at 3 institutions in 1 country.

Honglei ChenEpidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, USA. chenh2@niehs.nih.gov
Marie Richard
Dale P Sandler
David M Umbach
Freya Kamel
National Institute of Environmental Health Sciences · USNational Institutes of Health · USWestat (United States) · US

Funding

Environmental Exposures And Risk For Cancer and Chronic Diseases In AdultsZ01ES049028 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI SANDLER, DALE P · 1997 to 2008
$284k
LEAD AND OTHER NEUROTOXINS AS RISK FACTORS FOR AMYOTROPHIC LATERAL SCLEROSISZ01ES049005 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI SANDLER, DALE P · 1992 to 2008
$158k
Statistical Methods In Human Development/Clinical StudyZ01ES049004 · NIEHS · NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES · PI UMBACH, DAVID M · 1992 to 2008
$149k
Intramural NIH HHS Z01 ES049005
6 · The paper itself

Abstract

Recent data showed that soccer players in Italy had an unusually high risk of amyotrophic lateral sclerosis (ALS) and that repeated head trauma might have contributed to this increase. The authors examined whether head injury was related to ALS risk in a case-control study of 109 New England ALS cases diagnosed in 1993-1996 and 255 matched controls. They also conducted a meta-analysis of the published literature. Overall, ever having experienced a head injury was nonsignificantly associated with a higher ALS risk. When compared with persons without a head injury, a statistically significant ALS risk elevation was found for participants with more than one head injury (odds ratio (OR) = 3.1, 95 percent confidence interval (CI): 1.2, 8.1) and patients who had had a head injury during the past 10 years (OR = 3.2, 95 percent CI: 1.0, 10.2). For participants who had had multiple head injuries with the latest occurring in the past 10 years, risk was elevated more than 11-fold. The meta-analysis also indicated a moderately elevated risk of ALS among persons with previous head injuries (OR = 1.7, 95 percent CI: 1.3, 2.2). In this study population, physical injuries to other body parts, including the trunk, arms, or legs, were not related to ALS risk. These data support the notion that head injury may increase the risk of ALS.

Indexed as

AdultAgedAged, 80 and overAmyotrophic Lateral SclerosisCase-Control StudiesConfidence IntervalsCraniocerebral TraumaFemaleHumansLife StyleMaleMiddle AgedNew EnglandOdds RatioRisk AssessmentRisk Factors

Identifiers

PMID17641152
PMCPMC2239342
OpenAlexW2152476219

What OpenQuestion holds

Textmetadata
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.