Analysis of deprivation distribution in New Zealand by ethnicity, 1991-2013

To compare the distribution of Māori and New Zealand (NZ) European populations in Aotearoa New Zealand by neighbourhood deprivation, for the five censuses between 1991 and 2013, and to identify changes in the distribution pattern over time.Geographical meshblock data from the 1991-2013 New Zealand censuses, by NZDep Index deprivation score, and by prioritised ethnic group population, were combined to analyse ethnic population counts by deprivation decile and deprivation score. Trends over time were analysed.Māori were over-represented in the more deprived NZDep deciles and under-represented in the least deprived deciles for all census periods. The NZ European population were over-represented in the least deprived deciles, and under-represented in the more deprived deciles. In each census, over 40% of the Māori population have been living in the two most deprived deciles, compared to less than 15% for NZ European.The patterns of inequity in socio-economic deprivation between Māori and NZ Europeans have remained virtually unchanged since 1991, despite various Government commitments to reduce inequity. Socio-economic deprivation for Māori is a key determinant of health inequity, and bolder Government measures prioritised for Māori are needed to change this socio-economic gradient if health equity goals are to be met.