Breast cancer (BC) is the most frequently diagnosed cancer among women and the third most common cancer in New Zealand (NZ), with more than 3000 registrations and 600 deaths annually.¹ While survival from BC in NZ is better than many other cancers, Māori women—the indigenous peoples of NZ—have a higher mortality rate than NZ European women.² Therefore, for many NZ women, a BC diagnosis still threatens possible mortality, and frequently results in significant psychosocial distress. Indeed, around 20% to 50% of women with BC will develop anxiety or depression within 1 year of diagnosis.³