Growing Up in New Zealand is New Zealand’s contemporary longitudinal study tracking the development of more than 6,000 New Zealand children from before birth until they are young adults. The study is designed to provide unique information about what shapes children’s early development and how interventions might be targeted at the earliest opportunity to give every New Zealand child the best start in life.



Study name Growing Up in New Zealand
Study abbreviation GUiNZ
Current principal investigator/s

Dr Sarah-Jane Paine, Professor Susan Morton

Current project manager Annette Gohns
Cohort representative (study contact) Dr Sarah-Jane Paine
Postal address Private Bag 92019, Auckland Mail Centre, Auckland 1142
Phone 0508 476 946

Primary Institution University of Auckland, New Zealand
Major funding sources New Zealand Government, Ministry of Social Development
Study website
Key reference Morton, S. M., Atatoa Carr, P. E., Grant, C. C., Robinson, E. M., Bandara, D. K., Bird, A., Marks, E. J. (2012). Cohort profile: Growing Up in New Zealand. International Journal of Epidemiology, 1-11. doi: 10.1093/ije/dyr206
Are data available outside study team? Yes
Study focus Child health and development specifically related to: culture and identity; societal context and neighbourhood environment; family and whanau; health and wellbeing; psychosocial and cognitive development; education.
Sampling frame All expected births, occuring in the regions covered by three District Health Boards: Auckland, Counties- Manukau and Waikato. Estimated Delivery date between 25 April 2009 and 25 March 2010.
Year commenced 2008
Commencement sample 6,853 children (via 6,822 mothers and 4,404 partners)
Intergenerational? No
Imaging No
Linkage Ministry of Health, Ministry of Education, perinatal records
Biosamples? Guthrie card, saliva, nasal/throat swabs
Ethics approvals or requirements? Specific informed consent (NJY/08/06/055)



Wave Year Age (mean, range) Eligible sample
1  2009-2010 Antenatal 6,853 children (via 6,822 mothers and 4,404 partners)
2  2011 6 weeks 6,853 children
3  2010-2011 9 months 6,795 children
4  2011-2012 2 year 6,706 children
5  2013-2014 4.5 years 6,639 children
6  2015-2016 6 years 6,504 Mothers (of cohort children)
7  2017-2019 8 years 5556 children
8  2021-2022 12 years TBC