Evidence map›Paper›PMID 34794997›Full record

ArticleBMJ open2021

Firearm injury epidemiology in children and youth in Ontario, Canada: a population-based study.

Natasha Ruth Saunders, Charlotte Moore Hepburn, Anjie Huang, Claire de Oliveira, Rachel Strauss, Lisa Fiksenbaum, Paul Pageau, Ning Liu, David Gomez, Alison Macpherson

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.6field-weighted citation impact, top 14% 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

9 citing papers in PubMed, 16 citations in OpenAlex.

  1. Closing the knowledge gap: identifying research priorities for firearm-related injury and mortality in Canada.Health promotion and chronic disease prevention in Canada : research, policy and practice · 2026
    Article
  2. Article
  3. Article
  4. The epidemiology and deprivation profile of firearm-related injuries and deaths in British Columbia, Canada.Health promotion and chronic disease prevention in Canada : research, policy and practice · 2025
    Article
  5. Article
  6. Review
  7. Fractures in Children Due to Firearm Activity.Children (Basel, Switzerland) · 2023
    Article
  8. Article
  9. 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

10 authors at 4 institutions in 1 country.

Natasha Ruth SaundersDepartment of Pediatrics, University of Toronto, Toronto, Ontario, Canada natasha.saunders@sickkids.ca.ORCID 0000-0002-4369-6904
Charlotte Moore HepburnDepartment of Pediatrics, University of Toronto, Toronto, Ontario, Canada.
Anjie HuangICES, Toronto, Ontario, Canada.
Claire de OliveiraICES, Toronto, Ontario, Canada.
Rachel StraussICES, Toronto, Ontario, Canada.
Lisa FiksenbaumChild Health Evaluative Sciences, SickKids Research Institute, Toronto, Ontario, Canada.
Paul PageauDepartment of Emergency Medicine, University of Ottawa Faculty of Medicine, Ottawa, Ontario, Canada.
Ning LiuICES, Toronto, Ontario, Canada.
David GomezICES, Toronto, Ontario, Canada.
Alison MacphersonICES, Toronto, Ontario, Canada.
Institute for Clinical Evaluative Sciences · CAUniversity of Toronto · CAUniversity of Ottawa · CAYork University · CA

Funding

CIHR 167905
6 · The paper itself

Abstract

BACKGROUND AND

objectiveDespite firearms contributing to significant morbidity and mortality globally, firearm injury epidemiology is seldom described outside of the USA. We examined firearm injuries among youth in Canada, including weapon type, and intent.

designPopulation-based, pooled cross-sectional study using linked health administrative and demographic databases.

settingOntario, Canada.

participantsAll children and youth from birth to 24 years, residing in Ontario from 1 April 2003 to 31 March 2018. EXPOSURE: Firearm injury intent and weapon type using the International Classification of Disease-10 CM codes with Canadian enhancements. Secondary exposures were sociodemographics including age, sex, rurality and income. MAIN OUTCOMES: Any hospital or death record of a firearm injury with counts and rates of firearm injuries described overall and stratified by weapon type and injury intent. Multivariable Poisson regression stratified by injury intent was used to calculate rate ratios of firearm injuries by weapon type.

resultsOf 5486 children and youth with a firearm injury (annual rate: 8.8/100 000 population), 90.7% survived. Most injuries occurred in males (90.1%, 15.5/100 000 population). 62.3% (3416) of injuries were unintentional (5.5/100 000 population) of which 1.9% were deaths, whereas 26.5% (1452) were assault related (2.3/100 00 population) of which 18.7% were deaths. Self-injury accounted for 3.7% (204) of cases of which 72.0% were deaths. Across all intents, adjusted regression models showed males were at an increased risk of injury. Non-powdered firearms accounted for half (48.6%, 3.9/100 000 population) of all injuries. Compared with handguns, non-powdered firearms had a higher risk of causing unintentional injuries (adjusted rate ratio (aRR) 14.75, 95% CI 12.01 to 18.12) but not assault (aRR 0.84, 95% CI 0.70 to 1.00).

conclusionsFirearm injuries are a preventable public health problem among youth in Ontario, Canada. Unintentional injuries and those caused by non-powdered firearms were most common and assault and self-injury contributed to substantial firearm-related deaths and should be a focus of prevention efforts.

Indexed as

FirearmsSelf-Injurious BehaviorWounds, GunshotAdolescentChildCross-Sectional StudiesHumansMaleOntarioepidemiologyhealth & safetypaediatricspublic health

Identifiers

PMID34794997
PMCPMC8603258
OpenAlexW3212167108

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.