A new study on the use of prostate-specific antigen (PSA)-based prostate cancer screening in the United States found that many elderly men may be undergoing unnecessary prostate cancer screenings. Using data from surveys conducted in 2000 and 2005, researchers report that nearly half of men in their seventies underwent PSA screening in the past year - almost double the screening rate of men in their early fifties, who are more likely to benefit from early prostate cancer diagnosis and treatment. Further, men aged 85 and older were screened just as often as men in their early fifties...
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