Davie, Gabrielle, Cryer, Collin and Langley, John (2008) NZ Government's trend analysis of hospitalised self-harm is misleading. Australian & New Zealand Journal of Public Health, 32 (2). pp. 162-166. ISSN 1326-0200Full text not available from this repository.
Objective: The aim of this paper is to demonstrate that the trends published in the New Zealand (NZ) Government's 2006 Suicide Trends document for hospitalised self-harm are misleading.
Methods: Analysis of incident self-harm events resulting in hospitalisation and reference to published material on injury outcome indicators for the NZ Injury Prevention Strategy (NZIPS).
Results: The significant increase in rates of self-harm hospitalisation presented in Suicide Trends from 1989 to a large extent reflect changes in recording practice rather than any change in self-harm in the community. Indicators with significantly fewer threats to validity suggest there has been little, if any, increase in the incidence of self-harm. The authors of Suicide Trends did not adequately specify how they defined a case and, moreover, their methods were not consistent with those used for the NZIPS indicators.
Conclusions and Implications: The methodological challenges to producing valid indicators for the purposes of measuring trends in important non-fatal injury are substantial. Unless we accept that the usual methods of measuring trends in non-fatal injury are misleading and commit to taking up the challenge to produce and use better indicators, we will continue to run the risk of misleading ourselves and the public.
|Keywords:||Self-harm, surveillance, trends, injury|
|Schools and Departments:||Brighton and Sussex Medical School > Primary Care and Public Health|
|Subjects:||R Medicine > R Medicine (General)|
|Depositing User:||Jessica Stockdale|
|Date Deposited:||24 Apr 2012 11:30|
|Last Modified:||30 Nov 2012 16:56|