These researchers retrospectively analysed data from 301 patients undergoing surgery for high-grade glioma (HGG) in New Zealand between 1993 and 2003. The study aimed to determine the relationship of ethnicity with incidence, treatment and survival. Age standardised incidence rates for HGG did not differ between Māori and non-Māori patients (4.2 vs 4.1 per 100,000 person years). Māori were more likely to have complete tumour resection (OR, 3.59) but waited 1.32 times longer for radiotherapy. Median survival was 29 weeks, with poorer survival in Māori compared to non-Māori (HR, 1.55).