This annual report - Taranaki District Health Board

three then reviews mental health issues, including children and young people’s accessto mental health services, and suicide and self-harm.Evidence-Based Approaches to InterventionAs previously, each of the sections in this year’s report concludes with a brief overview oflocal policy documents and evidence-based reviews which consider population levelapproaches to the prevention or management of the issue under review. Appendix 1provides an overview of the methodology used to develop these reviews. As previously,the quality and depth of evidence available varies considerably from indicator to indicator.Data Quality Issues and the Signalling of Statistical SignificanceBecause of the cancellation of the 2011 Census and concerns about extrapolating Censuspopulation estimate denominators beyond five years, in this section Statistics NZpopulation projections have been used to calculate rates from 2007 onwards. Becausethese projections are only available for a limited range of ethnic groups (Māori, Pacific andEuropean/Other) and are unavailable by NZ Deprivation Index decile, the analyses insome sections are more limited than in previous years.Appendix 2 outlines the rationale for the use of statistical significance testing in this reportand Appendix 3 to Appendix 5 contain information on the data sources used to developeach indicator. Readers are urged to be aware of the contents of these Appendices wheninterpreting any information in this report.As outlined in Appendix 2, in order to assist the reader to determine whether tests ofstatistical significance have been used in a particular section, the significance of theassociations presented has been signalled in the text with the words significant, or notsignificant in italics. Where the words significant or not significant do not appear in the text,then the associations described do not imply statistical significance or non-significance.Introduction and Overview - 25