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Free PSA is best marker for prostate cancer:

This article was originally published in Clinica

Executive Summary

Free PSA is a better diagnostic of malignancy in prostate cancer than the alternatives of age-specific PSA testing and PSA density calculation, according to a paper in this month's Urology. In the study, the Beckman Coulter Hybritech free-PSA test was found to be have the same sensitivity (95%) as a PSA density measurement, while also being less expensive because it does not need an ultrasound scan. The age-specific reference method was found to be less sensitive than free PSA, missing between 20% and 60% of cancers in men over 60 years old.

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