When discussing ethnicity, the Deloitte report comments that “While there is evidence that the incidence of dementia may be higher for Māori and Pacific peoples in New Zealand, due to a higher prevalence of cardiovascular risk factors, no data were available to enable modelling of the extent of this difference”. Cullum et al. (2018) findings also suggest a higher incidence/prevalence due to the increased burden of risk factors in Māori and Pacific people.

References:

Cullum S., Mullin K., Zeng I., Yates S., Payman V., Fisher M., et al. (2018). Do community-dwelling Maori and Pacific peoples present with dementia at a younger age and at a later stage compared with NZ Europeans? Int J Geriatr Psychiatry. 33(8):1098-104. https://doi.org/10.1002/gps.4898.