Privacy impact assessment (PIA) for sourcing a selection of address-level location datasets for statistical purposes to support the production of Official Statistics, specifically child poverty statistics from the Household Economic Survey (HES).
This PIA is an update of Privacy impact assessment for sourcing address-level location datasets to support the 2023 Census and accompanying 2023 Post-enumeration Survey.
Download the document below, or read the recommendations and summary online.
Recommendations from Stats NZ's privacy team
We recommended that:
- The Information Management team is contacted when the data is ready to be disposed of.
- To mitigate the risk of no Certification and Accreditation (C&As) across the Integrated Data Infrastructure (IDI), the product owners of the IDI must work with the Security team to renew the C&As.
- The product owners of the IDI must work with the Security team to renew the C&As across the IDI.
Summary
Stats NZ is seeking to use a selection of address-level location datasets for statistical purposes to support the production of Official Statistics, specifically child poverty statistics from the Household Economic Survey (HES). This is an update of Privacy impact assessment for sourcing address-level location datasets to support the 2023 Census and accompanying 2023 Post-enumeration Survey.
This address-level data concerns the location of emergency and transitional accommodation.
The data providers include:
- Ministry of Social Development | Te Manatū Whakahiato Ora
- Ministry of Housing and Urban Development | Te Tūāpapa Kura Kāinga.
Stats NZ is working to repurpose existing datasets from the agencies above for research purposes in order to understand income and demographic characteristics from administrative data of people living at these addresses throughout the July 2021-June 2022 period. The original datasets were requested under Section 23 of the Data and Statistics Act 2022 on a voluntary basis.
Sourcing this address-level location information is important for assessing if it is possible for the HES target population to expand to represent individuals (including children) living in non-institutional non-private dwellings. This is important as the child poverty statistics currently do not cover children living in emergency and transitional accommodation.
The address-level datasets that contain the addresses of emergency and transitional accommodations, specifically the associated address IDs, will be added to and linked within the IDI and allow nominated internal researchers to identify income and high-level demographic characteristics these addresses throughout the July 2021-June 2022 period. This will help build a picture of the income and demographic distributions of these households and compare these to the income and demographic distributions of the current HES population. This comparison is necessary to understand if the processing methodologies used to produce the child poverty statistics can be adapted in a way that can improve the outputs to incorporate all children in Aotearoa New Zealand (with the exception of any in institutions) into the statistics, making the statistics more representative than they are currently.
The reason why these datasets are important to this research is because the current 2018 Census address IDs for non-private, non-institutional dwellings is of poor quality, and no datasets currently within the IDI indicate which addresses are emergency or transitional accommodation.
Overall, these datasets will contribute towards an improved aggregate profile of the people who live in emergency and transitional accommodation. This will enable assessment of what methodological changes could be possible to improve the scope of the child poverty statistics, thus the outputs have the potential to be improved and represent children living in emergency and transitional accommodations. Regardless of the methodological outcome, this research would be invaluable in improving understanding of those living in these vulnerable circumstances.
ISBN: 978-1-99-104969-8
