Investigation on reasons of unacceptable external quality assessment results for HbA1c in China in 2017
10.3760/cma.j.issn.1009-9158.2018.11.008
- VernacularTitle:2017年全国糖化血红蛋白室间质量评价不及格原因调查与分析
- Author:
Yuzhu HUANG
1
;
Tingting LI
;
Haijian ZHAO
;
Wei WANG
;
Chuanbao ZHANG
;
Yuxuan DU
;
Zhiguo WANG
Author Information
1. 100730,北京医院 国家老年医学中心 卫生部临床检验中心/北京市临床检验工程技术研究中心
- Keywords:
Hemoglobin A,glycosylated;
Laboratories,hospital;
Quality control
- From:
Chinese Journal of Laboratory Medicine
2018;41(11):827-831
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the reasons of unacceptable external quality assessment results for hemoglobin A1c (HbA1c), and improve quality level.Methods At the end of February 2017, five samples of HbA1c for external quality assessment (EQA) were sent to participated laboratories by post.After testing and reporting results by laboratories , the EQA organizer made statistical analysis and sent results back to laboratories.Meanwhile , messages would be sent to participants those had unacceptable EQA results . Investigating reasons of unacceptable results in 2017 through the EQA System based on web , which was developed by National Central for Clinical Laboratories , calculating the failure rate , analyzing the concrete reasons and combining EQA failure rates with current coefficient of variation .Results The EQA failure rate on HbA1c was 11.2％and reporting rates of reasons for failures was 70.4％(126/179).In the reasons for unacceptable results , technological (27.8％,35/126) and equipment's defects (26.2％,33/126) were the main reason categories , while malfunction ( 12.7％, 16/126 ) and methods defection ( 10.3％, 13/126 ) were the main reason subclass .The unexplainable results after survey account for 8.7％( 11/126 ) .In the group for coefficient of variation ( CV ) over 2％, the percentage of laboratories that had five samples get acceptable results was higher than that of group for CV less than 2％,and the percentage of laboratories that had at most four samples get acceptable results was lower than that of group for CV less than 2％.Conclusions The result of the reasons of unacceptable external quality assessment results for HbA 1c is generally satisfactory.The laboratory, manufacturer and EQA organizers should find and solve the working problems by analyzing EQA data , to improve the testing quality.
