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Published VersionCC BY V4.0, Open Access
Journal article
Higher mortality risk among injured individuals in a population-based matched cohort study
BMC Public Health, Vol.17(1), pp.1-9
2017
PMCID: PMC5288995
PMID: 28148259
Abstract
Background: Improved understanding of long-term mortality attributable to injury is needed to accurately inform injury burden studies. This study aims to quantify and describe mortality attributable to injury 12 months after an injury-related hospitalisation in Australia.
Method: A population-based matched cohort study using linked hospital and mortality data from three Australian states during 2008-2010 was conducted. The injured cohort included individuals >= 18 years who had an injury-related hospital admission in 2009. A comparison cohort of non-injured people was obtain by randomly selecting from the electoral roll. This comparison group was matched 1:1 on age, gender and postcode of residence. Pre-index injury health service use and 12-month mortality were examined. Adjusted mortality rate ratios (MRR) and attributable risk were calculated. Cox proportional hazard regression was used to examine the effect of risk factors on survival.
Results: Injured individuals were almost 3 times more likely to die within 12 months following an injury (MRR 2.90; 95% CI: 2.76-3.04). Individuals with a traumatic brain injury (MRR 7.58; 95% CI: 5.92-9.70) or injury to internal organs (MRR 7.38; 95% CI: 5.90-9.22) were 7 times more likely to die than the non-injured group. Injury was likely to be a contributory factor in 92% of mortality within 30 days and 66% of mortality at 12 months following the index injury hospital admission. Adjusted mortality rate ratios varied by type of cause-specific death, with MRR highest for injury-related deaths.
Conclusions: There are likely chronic consequences of sustaining a traumatic injury. Longer follow-up post-discharge is needed to consider deaths likely to be attributable to the injury. Better enumeration of long-term injury-related mortality will have the potential to improve estimates of injury burden.
Details
- Title
- Higher mortality risk among injured individuals in a population-based matched cohort study
- Authors
- Rebecca J. Mitchell (Author) - Macquarie UniversityCate M. Cameron (Author) - Griffith UniversityRod McClure (Author) - Harvard University
- Publication details
- BMC Public Health, Vol.17(1), pp.1-9
- Publisher
- BioMed Central Ltd.
- Date published
- 2017
- DOI
- 10.1186/s12889-017-4087-0
- ISSN
- 1471-2458
- PMID
- 28148259; PMC5288995
- Copyright note
- © The Author(s). 2017 Open Access. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
- Organisation Unit
- Centre for Human Factors and Systems Science; University of the Sunshine Coast, Queensland
- Language
- English
- Record Identifier
- 99651249002621
- Output Type
- Journal article
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