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  • Title: 4-year prostate specific antigen progression and diagnosis of prostate cancer in the European Randomized Study of Screening for Prostate Cancer, section Rotterdam.
    Author: Schröder FH, Raaijmakers R, Postma R, van der Kwast TH, Roobol MJ.
    Journal: J Urol; 2005 Aug; 174(2):489-94; discussion 493-4. PubMed ID: 16006878.
    Abstract:
    PURPOSE: The European Randomized Study of Screening for Prostate Cancer investigates the impact of screening on prostate cancer mortality and contributes to a better understanding of available screening tests. The present study evaluates the predictive value of a prostate specific antigen (PSA) increase to PSA 3.0 ng/ml or greater in a 4-year period in men who present with low PSA values (less than 3.0 ng/ml) at first screen. MATERIALS AND METHODS: A total of 42,376 men were randomized to screening vs control in Rotterdam. Of 6,467 men 5,771 had PSA values of less than 3.0 ng/ml, did not undergo biopsy at baseline and were rescreened after 4 years with PSA 3.0 ng/ml or greater as biopsy indication. PSA progression in a 4-year interscreening interval is evaluated by determining the positive predictive values, detection rates and parameters of aggressiveness of round 2 cancers. RESULTS: PSA progression to more than 3.0 ng/ml occurred in 0.9%, 9.3% and 48.6% of men who presented with PSA values less than 1.0, 1 to 1.9 and 2 to 2.9 ng/ml, respectively, in round 1. Their respective positive predictive values amounted to 19.0%, 23.8% and 27.9%. Cancer detection rates increased with increasing PSA values in round 1. The distribution of low, moderate and high risk cancers depends on round 2 but not on round 1 PSA ranges. CONCLUSIONS: PSA progression to the (arbitrary) cutoff value of 3.0 ng/ml and the diagnosis of prostate cancer in round 2 screening with a 4-year interval depends strongly on PSA values at the time of the 1st screen. These observations will be helpful to design future screening procedures. With levels less than 2.0 ng/ml PSA progression to levels of 3.0 ng/ml or greater is rare as it was seen only in 4.8% of all men.
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