Fifteen years of bowel cancer screening policy in Australia: putting evidence into practice?

To the Editor: Flitcroft and colleagues’ historical report of bowel cancer screening in Australia is helpful to those new to this internationally accepted life-saving practice.1

One inaccuracy needs correcting. Lung cancer is the leading cause of cancer death in Australia — not prostate or breast cancer. Flitcroft et al appear to have quoted the Australian Institute of Health and Welfare data for new diagnoses, not cancer deaths.2 This error reflects the general lack of community focus or interest in the more than 7000 Australians who die each year from smoking-related lung cancer.3

An update is also warranted. Since submission of their article, once-only flexible sigmoidoscopy screening has joined faecal occult blood test (FOBT) screening in having randomised controlled trial evidence. Results of a recent British study point to the necessity of looking for this occult disease with flexible colorectal endoscopy.4 The study showed a massive 43% reduction in colorectal cancer mortality and a 50% reduction in incidence of invasive rectal cancer, owing to early flexible sigmoidoscopic diagnosis of colonic polyposis followed by polypectomy performed at subsequent colonoscopy. These techniques save thousands of lives worldwide each year.

Flitcroft et al state that “A staged roll-out is a sensible approach”, but many of us who perform colonoscopic polypectomies on a weekly basis strongly disagree. Which is better — to be on a waiting list for a colonoscopy with a positive FOBT result, or to be ignorant of the possibility of a growing cancer in the colon? It is time to give people the opportunity of FOBT with or without further investigations.

Flitcroft et al rightly point out that the National Health and Medical Research Council recommended that we should have at least biennial FOBT screening for individuals over 50 years of age.5 Australians have been very tardy in terms of adopting this recommendation. We don’t need an “age-specific cost-effectiveness analysis”. The argument should be about introducing flexible sigmoidoscopy. Like Semmelweis and hand washing back in 1847, history will judge our current generation harshly for ignoring the original life-saving FOBT research that was published in 19936 and allowing thousands of Australians to die unnecessarily from bowel cancer since then.

It is time for us to take our heads out of the sand and introduce a proper national bowel cancer screening program. Thank you to Flitcroft and colleagues for helping us take another step in this direction.