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Benjamin Disraeli, Queen Victoria’s Prime Minister, once remarked “There are three kinds of lies, lies, damned lies and statistics”. Disraeli, if he had been a doctor, could have been referring to the PSA test for prostate cancer. For instance, the New England Journal of Medicine has just reported a European study that showed that this blood test cut the death rate of this disease by 20 percent. But this impressive figure refers to a relative reduction in deaths.