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  • Title: Performance evaluation for screening laboratories of the Asia-Pacific region.
    Author: Hannon WH.
    Journal: Southeast Asian J Trop Med Public Health; 2003; 34 Suppl 3():39-42. PubMed ID: 15906691.
    Abstract:
    The Centers for Disease Control and Prevention (CDC) has a long history of involvement in quality assurance (QA) activities for support of newborn screening laboratories. Since 1978, CDC's Newborn Screening Quality Assurance Program (NSQAP), has distributed dried-blood spot (DBS) materials for external QA and has maintained related projects to serve newborn screening laboratories. The first DBS materials were distributed for congenital hypothyroidism screening in 1978 and by 2001, NSQAP had expanded to over 30 disorders and performance monitoring for all filter paper production lots from approved commercial sources. In 2001, there were 250 active NSQAP participants, 167 laboratories from 45 countries and 83 laboratories in the United States. Of these laboratories, 31 are from the Asia Pacific Region representing nine countries primarily for two disorders. In 1999, US laboratories had more errors for Performance Evaluation (PE) specimens than other laboratories; but in 2000, US laboratories had fewer errors. International laboratories reported 0.3% false-negative PE clinical assessments for congenital hypothyroidism and 0.5% for phenylketonuria (0.5%) in 2000. Paperless PE data-reporting operation using an Internet website has recently been implemented.
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