Lab Med Qual Assur.  2021 Sep;43(3):107-121. 10.15263/jlmqa.2021.43.3.107.

Annual Report of the Korean Association of External Quality Assessment Service on General Chemistry (2020)

• Lee YW

• KMID: 2520818
• DOI: http://doi.org/10.15263/jlmqa.2021.43.3.107

Abstract

In 2020, the general chemistry proficiency testing program of the Korean Association of External Quality Assessment Service consisted of routine and urine chemistry programs including 29 and 13 test items, respectively. Creatinine among routine chemistry programs was integrated into the accuracy-based creatinine test program. The routine and the urine chemistry programs were conducted 4 times and twice a year, respectively. Statistical analyses data for the test methods and reagent companies were reported based on the information and results of the test items provided by each institution. Statistical analyses included the number of participating institutes, mean, standard deviation, coefficient of variation (CV), median, and minimum and maximum values for each group. Each report included tables, histograms, Levey-Jennings charts, and the standard deviation indices showing the statistics of each test item. More than 1,000 institutions performed the 16 test items of the routine chemistry program and the number is continuously increasing. Alkaline phosphatase and lactate dehydrogenase were found to have relatively high CVs due to differences in results among the test methods; however, the CV values for others, ranged within 10%. In the urine chemistry program, albumin showed a relatively high CV.

Keyword

Proficiency testing; General chemistry; Korean Association of External Quality Assessment Service