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Some patients value the certainty of eliminating a future health risk above and beyond treatment related inconvenience and potential harm, and vice versa. In the late 1990s about 4 in 10 women would have opted for treatment of ductal carcinoma in situ even if the risk of progression was as low as 1% which however also means 6 in 10 women would have not. At the conference, Fiona Miller (Toronto) and Michael Pignone (Chapel Hill) reported on discrete choice experiments exploring diagnosis/overdiagnosis acceptability trade offs for the detection of either congenital syndromes or prostate cancer. Their findings confirmed that attitudes to overdiagnosis vary, with very substantial proportions of the public willing to accept relatively large potential for overdiagnosis. [4,5]
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