Dicker B, Todd V, Tunnage B, et al. - This retrospective observational study was undertaken to determine if heath disparities in incidence and outcome of out-of-hospital cardiac arrest exist between New Zealand (NZ) ethnic groups. This investigation was carried out using NZ cardiac arrest registry data for a 2-year period. Compared with European/Others (93.8), age-adjusted incidence rates per 100,000 person-years were higher in Māori (144.4) and Pacific Peoples (113.5). Significant differences are found in health equity by ethnicity. Findings suggested that Māori and Pacific Peoples have a higher incidence of out-of-hospital cardiac arrest and at a younger age. Māori and Pacific Peoples have lower survival rates to 30-days. The findings bring momentum to tailored health interventions for ethnic populations at risk.