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The 4Kscore combines total, free and intact PSA together with human kallikrein 2. [46] It is used to try to determine the risk of a Gleason score greater than 6. [46] The Prostate Health Index (PHI) is a PSA-based blood test for early prostate cancer screening. It may be used to determine when a biopsy is needed.
OPKO Health (OPK) gets FDA nod for its 4Kscore Test that will further validate its value of being an important tool in the diagnosis of prostate cancer.
OPKO Health Announces Launch of 4Kscore™ in Europe Strategic Partner, International Health Technology Ltd, Launches Laboratory Service MIAMI--(BUSINESS WIRE)-- OPKO Health, Inc. (NYSE:OPK) today ...
The correlation between scores on the two alternate forms is used to estimate the reliability of the test. This method provides a partial solution to many of the problems inherent in the test-retest reliability method. For example, since the two forms of the test are different, carryover effect is less of a problem. Reactivity effects are also ...
In statistics, intra-rater reliability is the degree of agreement among repeated administrations of a diagnostic test performed by a single rater. [ 1 ] [ 2 ] Intra-rater reliability and inter-rater reliability are aspects of test validity .
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Cronbach's alpha values (an estimate of internal consistency) median (average) values were 0.84 for the personality pattern scales, 0.83 for the clinical syndrome scales, and 0.80 for the Grossman Facet Scales. [1] Test-retest reliability is an estimate of the stability of the responses in the same person over a brief period of time.
Andrew Julian Vickers (born 11 February 1967) [1] [2] is a biostatistician and attending research methodologist at Memorial Sloan Kettering Cancer Center. Since 2013, he has also been professor of public health at Weill Cornell Medical College. [3] He is the statistical editor for the peer-reviewed journal European Urology. [4]