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1  Introduction

1.1  Purpose

This work makes use of integrated administrative data held in Statistics NZ's Integrated Data Infrastructure (IDI) and managed by Statistics New Zealand to ensure the security and confidentiality of people's information. This study is focussed on children aged 0 to 14, and builds on closely related earlier work that identified specific groups within this population that are at particular risk of poor longer term outcomes.

1.2  Related studies

This work is related to two analytical projects undertaken in 2015:

  • “Using Integrated Administrative Data to Understand Children at Risk of Poor Outcomes as Young Adults” (AP 15/01), which used integrated administrative data to identify groups of children who are at greater risk of experiencing poorer longer-term outcomes, at later ages in childhood or when they are young adults.
  • “Using Integrated Administrative Data to Identify Youth who are at Risk of Poor Outcomes as Adults” (AP 15/02), which identified groups of youth between the ages of 15 and 24 who are atgreater risk of experiencing poorer long-term outcomes when aged 25-34.

The first study used MSD's Integrated Child Dataset (ICD) which was the most comprehensive dataset on children available at the time the study was undertaken in early 2015. With the inclusion of information from Child, Youth and Family in mid 2015, Statistics New Zealand’s Integrated Data Infrastructure (IDI) became the most comprehensive dataset available. This study updates and extends the first study by making use of information available in IDI on parent-child relationships, border movements, selected health service use, and participation and achievement in education.

This report focuses on children aged 0 to 14, and in doing so complements the IDI based analysis of 15 to 24 year olds in the second study. This report provides separate results for children aged 0-5 and 6-14 years, reflecting the initial focus of social sector agencies on the younger age group. Results for all children aged 0-14 years are included in the Appendix.

The earlier ICD based analysis found that a small number of characteristics observed in the agencies administrative data were strongly associated with poor outcomes as young adults. The current analysis focused on children who had two or more of four particular characteristics or indicators. The choice of the four risk indicators was based on the earlier ICD based work and subsequent decisions made by key social agencies on how the priority population would be defined among children aged 0-5 years.

1.3  Report structure

The report is structured as follows:

  • Section 2 describes the data and methods used including key limitations and caveats.
  • Section 3 describes the characteristics of children aged 0-5 years, making use of the more extensive relationship, health and education data available in the IDI. The analysis describes all children, but with a particular focus on children who have two or more of four specific characteristics (or indicators). The characteristics and future outcomes of various groups of children with differing levels of risk.
  • Section 4 extends the analysis to children aged 6-14 years. Information on all those aged 0-14 years is included in the Appendix 2.
  • Section 5 summarises the findings.
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