Connect
MJA
MJA

The ABC breast cancer cluster: the bad news about a good outcome

Bernard W Stewart
Med J Aust 2010; 192 (11): . || doi: 10.5694/j.1326-5377.2010.tb03659.x
Published online: 7 June 2010

New data bring to a close Australia’s most intensive cancer cluster investigation

Though only a small proportion of cancer clusters are reported in the peer-reviewed literature, a consistent picture emerges from those reports. The term “cancer cluster” refers to health authorities being alerted to a perceived increased incidence of cancer, involving 15 cases or fewer in the first instance, within a particular community or group. Aware of the anxiety generated by the prospect of a cancer cluster, cluster investigators focus on local circumstances that might account for increased risk, and if they fail to identify any such factors, the matter rests.1


  • 1 Cancer Control Program, Public Health Unit, South Eastern Sydney and Illawarra Area Health Service, Sydney, NSW.
  • 2 Faculty of Medicine, University of New South Wales, Sydney, NSW.



  • 1. Westley-Wise VJ, Stewart BW, Kreis I, et al. Investigation of a cluster of leukaemia in the Illawarra region of New South Wales, 1989–1996. Med J Aust 1999; 171: 178-183. <MJA full text>
  • 2. Sitas F, O’Connell DL, van Kemenade C, et al. Breast cancer risk among female employees of the Australian Broadcasting Corporation in Australia. Med J Aust 2010; 192: 651-654.
  • 3. Armstrong B, Aitken J, Sim M, Swan N. Breast cancer at the ABC Toowong Queensland. Final report of the Independent Review and Scientific Investigation Panel. 2007. http://www.abc.net.au/corp/pubs/documents/Breast_Cancer_Toowong_Final_Report.pdf (accessed Feb 2010).
  • 4. Stewart BW. “There will be no more!”: the legacy of the Toowong breast cancer cluster. Med J Aust 2007; 187: 178-180. <MJA full text>
  • 5. Rothman KJ. A sobering start for the cluster busters’ conference. Am J Epidemiol 1990; 132 (1 Suppl): S6-S13.
  • 6. Doll R. Strategy for detection of cancer hazards to man. Nature 1977; 265: 589-596.
  • 7. Stewart BW. Banding carcinogenic risks in developed countries: a procedural basis for qualitative assessment. Mutat Res 2008; 658: 124-151.
  • 8. Winn DM. The Long Island Breast Cancer Study Project. Nat Rev Cancer 2005; 5: 986-994.
  • 9. Stewart BW. Confusion and anxiety about reported causes of cancer [abstract]. Asia Pac J Clin Oncol 2009; 5 Suppl 2: A153.
  • 10. Australian Institute of Health and Welfare and Australasian Association of Cancer Registries. Cancer in Australia: an overview. Canberra: AIHW, 2008. (AIHW Cat. No. CAN 42; Cancer Series No. 46.)
  • 11. Niederdeppe J, Levy AG. Fatalistic beliefs about cancer prevention and three prevention behaviors. Cancer Epidemiol Biomarkers Prev 2007; 16: 998-1003.

Author

remove_circle_outline Delete Author
add_circle_outline Add Author

Comment
Do you have any competing interests to declare? *

I/we agree to assign copyright to the Medical Journal of Australia and agree to the Conditions of publication *
I/we agree to the Terms of use of the Medical Journal of Australia *
Email me when people comment on this article

Online responses are no longer available. Please refer to our instructions for authors page for more information.