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Published in: BMC Neurology 1/2024

Open Access 01-12-2024 | Central Nervous System Trauma | Research

Case identification of non-traumatic brain injury in youth using linked population data

Authors: Rebecca F Slykerman, Betony E Clasby, Jimmy Chong, Kathryn Edward, Barry J Milne, Helen Temperton, Hiran Thabrew, Nicholas Bowden

Published in: BMC Neurology | Issue 1/2024

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Abstract

Background

Population-level administrative data provides a cost-effective means of monitoring health outcomes and service needs of clinical populations. This study aimed to present a method for case identification of non-traumatic brain injury in population-level data and to examine the association with sociodemographic factors.

Methods

An estimated resident population of youth aged 0–24 years was constructed using population-level datasets within the New Zealand Integrated Data Infrastructure. A clinical consensus committee reviewed the International Classification of Diseases Ninth and Tenth Editions codes and Read codes for inclusion in a case definition. Cases were those with at least one non-traumatic brain injury code present in the five years up until 30 June 2018 in one of four databases in the Integrated Data Infrastructure. Rates of non-traumatic brain injury were examined, both including and excluding birth injury codes and across age, sex, ethnicity, and socioeconomic deprivation groups.

Results

Of the 1 579 089 youth aged 0–24 years on 30 June 2018, 8154 (0.52%) were identified as having one of the brain injury codes in the five-years to 30 June 2018. Rates of non-traumatic brain injury were higher in males, children aged 0–4 years, Māori and Pacific young people, and youth living with high levels of social deprivation.

Conclusion

This study presents a comprehensive method for case identification of non-traumatic brain injury using national population-level administrative data.
Appendix
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Metadata
Title
Case identification of non-traumatic brain injury in youth using linked population data
Authors
Rebecca F Slykerman
Betony E Clasby
Jimmy Chong
Kathryn Edward
Barry J Milne
Helen Temperton
Hiran Thabrew
Nicholas Bowden
Publication date
01-12-2024
Publisher
BioMed Central
Published in
BMC Neurology / Issue 1/2024
Electronic ISSN: 1471-2377
DOI
https://doi.org/10.1186/s12883-024-03575-6

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