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KMID : 0985420180400020070
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Laboratory Medicine and Quality Assurance
2018 Volume.40 No. 2 p.70 ~ p.76
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Annual Report on the External Quality Assessment Scheme for Tumor Markers in Korea (2017)
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Song Sang-Hoon
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Abstract
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In 2017, the tumor marker program of the Korean Association of External Quality Assessment Service was performed for tumor markers I and II. Tumor marker I comprised alphafetoprotein (AFP), carcinoembryonic antigen, protein induced by vitamin K absence-II, and prostate specific antigen (PSA), and tumor marker II comprised cancer antigen (CA) 125, CA 19-9, CA 15-3, CA 72-4, and beta-2-microglobulin. Two challenges were conducted with three pooled serum or control materials, except for the first tumor marker I challenge. In total, 648 institutions participated in tumor marker I and 380 in tumor marker II programs. The response rates were 92.9%?97.0%. The coefficients of variation (CVs) were different depending on tests and samples, and average CVs were 3.7%?16.8%. The average CV of CA 72-4 tests, whose number of participants was the smallest, was the lowest. The average CV of AFP tests, which included a sample with very high levels, was the highest.
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KEYWORD
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Proficiency testing, Tumor marker, Korean Association of External Quality Assessment Service
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