Open AccessImprecision Investigation and Analysis of Routine Chemistry in China
Author(s) -
Fei Yang,
Wang Wei,
He Falin,
Zhong Kun,
Wang Zhiguo
Publication year - 2016
Publication title -
journal of clinical laboratory analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.536
H-Index - 50
eISSN - 1098-2825
pISSN - 0887-8013
DOI - 10.1002/jcla.21877
Subject(s) - analyte , quality (philosophy) , coefficient of variation , computer science , operations research , statistics , mathematics , chemistry , chromatography , physics , quantum mechanics
Background This study aims to investigate the imprecision of internal quality control of routine chemistry analytes so that we can have an overall knowledge of imprecision level of measurement in laboratories in China. Methods The internal quality control information including two kinds of coefficient of variations (CVs) of 22 analytes were collected via an on‐line questionnaire. Then, the percentages of laboratories meeting the quality requirement for each analyte were calculated according to five imprecision criteria. Results Among these 22 analytes, creatine kinase got the most satisfied result, the percentages of laboratories whose current CV met 1/3 total allowable error (1/3TEa), 1/4TEa, and the specifications based on biological variation were 99.3%, 95.9%, 99.6%, 99.9%, and 90.6%, respectively, while Na got the lowest satisfaction rate according to these specifications, which were 4.15%, 22.4%, 4.2%, 9.0%, and 1.3%, respectively. From an overall perspective, most of the 22 analytes got a satisfied result when applying the criteria defined by CLIA'88, while only a small amount of laboratories can meet the requirement when applying the specifications derived from biological variation. Conclusions There is huge space for us to enhance and substantial effort is needed in improving and implementing quality management in China.