Evidence map›Paper›PMID 26858348›Full record

ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2016

Risk of suicide after a concussion.

Michael Fralick, Deva Thiruchelvam, Homer C Tien, Donald A Redelmeier

Open access · goldAbstract read
In one paragraph

Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 3 pooled it
11.4field-weighted citation impact, top 1% 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

33 citing papers in PubMed, 3 syntheses or guidelines pooled it, 100 citations in OpenAlex.

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  18. Mental health outcomes after major trauma in Ontario: a population-based analysis.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2018
    Article
  19. Traumatic brain injury reduction in athletes by neck strengthening (TRAIN).Contemporary clinical trials communications · 2018
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Michael FralickDepartment of Medicine (Fralick, Redelmeier), University of Toronto; Evaluative Clinical Sciences (Fralick, Thiruchelvam, Tien, Redelmeier), Sunnybrook Research Institute; Institute for Clinical Evaluative Sciences (Thiruchelvam); Canadian Forces Health Services (Tien), Toronto, Ont.
Deva ThiruchelvamDepartment of Medicine (Fralick, Redelmeier), University of Toronto; Evaluative Clinical Sciences (Fralick, Thiruchelvam, Tien, Redelmeier), Sunnybrook Research Institute; Institute for Clinical Evaluative Sciences (Thiruchelvam); Canadian Forces Health Services (Tien), Toronto, Ont.
Homer C TienDepartment of Medicine (Fralick, Redelmeier), University of Toronto; Evaluative Clinical Sciences (Fralick, Thiruchelvam, Tien, Redelmeier), Sunnybrook Research Institute; Institute for Clinical Evaluative Sciences (Thiruchelvam); Canadian Forces Health Services (Tien), Toronto, Ont.
Donald A RedelmeierDepartment of Medicine (Fralick, Redelmeier), University of Toronto; Evaluative Clinical Sciences (Fralick, Thiruchelvam, Tien, Redelmeier), Sunnybrook Research Institute; Institute for Clinical Evaluative Sciences (Thiruchelvam); Canadian Forces Health Services (Tien), Toronto, Ont. dar@ices.on.ca.
Institute for Clinical Evaluative Sciences · CASunnybrook Health Science Centre · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

backgroundHead injuries have been associated with subsequent suicide among military personnel, but outcomes after a concussion in the community are uncertain. We assessed the long-term risk of suicide after concussions occurring on weekends or weekdays in the community.

methodsWe performed a longitudinal cohort analysis of adults with diagnosis of a concussion in Ontario, Canada, from Apr. 1, 1992, to Mar. 31, 2012 (a 20-yr period), excluding severe cases that resulted in hospital admission. The primary outcome was the long-term risk of suicide after a weekend or weekday concussion.

resultsWe identified 235,110 patients with a concussion. Their mean age was 41 years, 52% were men, and most (86%) lived in an urban location. A total of 667 subsequent suicides occurred over a median follow-up of 9.3 years, equivalent to 31 deaths per 100,000 patients annually or 3 times the population norm. Weekend concussions were associated with a one-third further increased risk of suicide compared with weekday concussions (relative risk 1.36, 95% confidence interval 1.14-1.64). The increased risk applied regardless of patients' demographic characteristics, was independent of past psychiatric conditions, became accentuated with time and exceeded the risk among military personnel. Half of these patients had visited a physician in the last week of life.

interpretationAdults with a diagnosis of concussion had an increased long-term risk of suicide, particularly after concussions on weekends. Greater attention to the long-term care of patients after a concussion in the community might save lives because deaths from suicide can be prevented.

Indexed as

AdultBrain ConcussionCanadaCohort StudiesFemaleHumansLongitudinal StudiesLong-Term CareMaleOntarioRisk FactorsSuicide

Identifiers

PMID26858348
PMCPMC4835278
OpenAlexW2254034296

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.