The VHIN is a network of researchers, analysts and other professionals who use health data to generate insights that support the health and wellness of all New Zealanders. The network facilitates sharing and collaboration amongst network members in order to enhance health research outputs and improve health service delivery and health outcomes in New Zealand (About VHIN).

A deeper understanding of the IDI and increased awareness of data quality issues can be gained via online guides, discussions on the VHIN Facebook page, analytical code from VHIN research projects and our shared code repository, explanatory material from meetings and presentations about current IDI research, and courses.

News & Events

COMPASS 2019 Colloquium

COMPASS are a social science research team undertaking quantitative research with policy relevance. COMPASS holds an annual research colloquium at Statistics New Zealand in Wellington to showcase their research to the government, academic, and broader research community. This years Colloquium is on Wednesday 7 August, in Wellington, and they will present updates from a number of their current projects. Follow this link for more details and to register. Attendees are capped at 60, so please get in quick if you would like to attend.

Pharmacoepidemiology Research Network Symposium – Save the date!

The 5th Pharmacoepidemiology Research Network Symposium will be held at the University of Otago, Dunedin, on Wednesday 20 November 2019. The Symposium will be relevant for researchers, clinicians, and others who have an interest in the utilisation and safety of medicines, medical devices, and vaccines, and those with an interest in epidemiological methods. Dr Anders Hviid will be the keynote speaker this year. Dr. Hviid is a senior pharmacoepidemiologist who has worked on observational studies of vaccine and drug safety at Statens Serum Institut, Copenhagen, Denmark, since 2001. A call for abstracts and registrations will be sent out in the next few weeks, but in the meantime please save the date.

2018 Census technical seminar

Stats NZ has released a recording of the Census Technical Seminar on their website. The seminar describes how the 2018 Census file was created following lower than expected coverage from the census. This includes using the Integrated Data Infrastructure to insert missing records and variables. If you didn’t attend the live seminars and are planning to use 2018 Census data it is worth watching. Watch the seminar.

New IDI guide available: Before School Check data in the IDI

The Before School Check (B4SC) is a national programme that monitors the health and development of four-year-old children. This post describes the B4SC dataset and its usefulness as an analytic dataset in the IDI.


Accident Compensation Corporation (ACC) claims are the most complete and comprehensive source of national statistics on injuries. This guide aims to improve understanding about the benefits and challenges of using ACC claims data in the IDI.

Population Association of New Zealand (PANZ) conference, Wellington

The Population Association of New Zealand (PANZ) conference  will be held in Wellington on 20 and 21 June 2019. The theme is ‘Population change in Aotearoa New Zealand: people, places and well-being’ and a there is a great line-up of keynote speakers. Abstract submission has been extended until 15 March so you still have a few days to submit an abstract if you are interested. See the following link for more details. 

VHIN related research: Data Resource Profile: The New Zealand Integrated Data Infrastructure (IDI).

An article about New Zealand’s Integrated Data Infrastructure (IDI), written by some VHIN members, has recently been published in the International Journal of Epidemiology. It outlines the data included in the IDI, and ways it can be used for research. Read the full article.