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Sound health policy decisions required for prostate cancer
screening
The ad hoc experiment of PSA testing
continues1 and men with lower urinary tract
symptoms are at no greater risk of prostate cancer than those without symptoms,
while overdiagnosis of prostate cancer is a major problem. In a recent
chemoprevention trial, 24.4% of men in the placebo group had prostate cancer
diagnosed over seven years yet only 6% could expect to develop clinical disease
in their lifetime.2 Therefore, up to 75% of men
diagnosed with prostate cancer by PSA screening may never develop clinical
disease. They do, however, contribute significantly to radiotherapy waiting
times for all cancer patients. The complication rate from treatment is
significant and the demand on urological and radiotherapy services considerable.
Without evidence of a reduction in prostate cancer mortality, the evidence of
harm greatly outweighs the evidence of
benefit.3 The ethical practice of medicine, and
public health medicine in particular, requires sound leadership in the
development and implementation of health policy. Dr Corwin’s patient
appears to be let down as much by health policy decisions as by a shortage of
resources.4
Brian Cox
Department of Preventive & Social Medicine Dunedin School of Medicine References:
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