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ANZ J Surg. 2015 Jul-Aug;85(7-8):546-52. doi: 10.1111/ans.12851. Epub 2014 Sep 29.

Breast cancer survival in New Zealand women.

Author information

  • 1Waikato Clinical School, Faculty of Medical and Health Sciences, University of Auckland, Hamilton, New Zealand.
  • 2Te Puna Oranga, Maori Health, Waikato District Health Board, Hamilton, New Zealand.
  • 3National Breast Cancer Audit Steering Committee, Breast Surgeons of Australia and New Zealand, Sydney, New South Wales, Australia.
  • 4Breast Endocrine and Surgical Oncology Unit, Royal Adelaide Hospital, Adelaide, South Australia, Australia.
  • 5Department of Surgery, University of Adelaide, Adelaide, South Australia, Australia.
  • 6Breast Surgeons of Australia and New Zealand Quality Audit, Royal Australasian College of Surgeons, Adelaide, South Australia, Australia.
  • 7Population Health, Cancer Australia, Sydney, New South Wales, Australia.
  • 8School of Population Health, University of South Australia, Adelaide, South Australia, Australia.



The Quality Audit (BQA) of Breast Surgeons of Australia and New Zealand includes a broad range of data and is the largest New Zealand (NZ) breast cancer (BC) database outside the NZ Cancer Registry. We used BQA data to compare BC survival by ethnicity, deprivation, remoteness, clinical characteristic and case load.


BQA and death data were linked using the National Health Index. Disease-specific survival for invasive cases was benchmarked against Australian BQA data and NZ population-based survivals. Validity was explored by comparison with expected survival by risk factor.


Compared with 93% for Australian audit cases, 5-year survival was 90% for NZ audit cases overall, 87% for Maori, 84% for Pacific and 91% for other.


BC survival in NZ appears lower than in Australia, with inequities by ethnicity. Differences may be due to access, timeliness and quality of health services, patient risk profiles, BQA coverage and death-record methodology.


breast cancer; ethnicity; risk factor; survival

[PubMed - indexed for MEDLINE]
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