Here’s another superb article ‘Why mammography screening has not lived up to expectations from the randomised trials’. Peter Gotzsche. Karsten Juhl Jorgensen, Per-Henrik Zahl, Jan Maehlen just published online 10 November 2011, in ‘Cancer Causes & Control’. It analysed ‘the relation between tumour sizes and stages and the reported effects on breast cancer mortality with and without screening in trials and observational studies…’
Like many others, this article concludes the decline in breast cancer mortality is caused by improved adjuvant therapy and breast cancer awareness, not screening (and explains why this conclusion is reached).
‘We also believe it is more important to reduce the incidence of cancer than to detect it ‘early’. ’Avoiding getting screening mammograms reduces the risk of becoming a breast cancer patient by one-third.’
‘Numbers of advanced cancers did not decrease after the introduction of screening programmes.