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PSA Standardization

CAP Proficiency Testing

Slide 21

October 2009

Evaluation of CAP proficiency testing results from 2008 and 2009 also demonstrates the variability between manufacturers.  The percent bias calculated is the absolute percent bias which deviates from the Access/Hybritech method, chosen as the predicate or gold standard method. The variation ranges from less than 5% up to 40%.  It is clear that further efforts need to be made to produce results which have greater harmonization.

CAP Testing


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