摘要
目的利用室内质量控制数据室间比对指标评价本实验室临床化学检验质量。方法每日测定两个水平的质控物,定时将室内质量控制数据上传至数据处理平台。用Unity Real Time~?软件计算的数据包括:本实验室测定的均值(xmea)、标准差(smea)、变异系数(CV_mea)和总误差(TE);对等组的均值(xpeer)、标准差(speer)和变异系数(CV_peer);与对等组比对的偏倚(bias)、标准差指数(SDI)、变异系数指数(CVI)。将本实验室数据与对等组的数据进行比对分析。结果所有测定项目的 smea和CV_mea低于对等组,CVI<1.0,提示精密度良好;-2.0<SDI<2.0,表示xmea在xpeer±2 speer范围内,提示正确度良好。所有测定项目的 TE满足国家标准(GB/T 20470 2006)的要求。除外GGT,所有项目的 TE满足行业标准(WS/T403 2012)的要求。结论室内质量控制数据实验室间比对指标是一种新的质量控制工具,能时提供正确度和精密度的信息,可用于评价临床实验室的分析质量。
Objective To evaluate the quality of clinical chemistry test in our laboratory using the index of internal quality control data inter-laboratory comparison. Methods Two quality control sera were measured daily ,and the quality control data were uploaded to the data processing platform. The data measured by our laboratory include mean（xmea）,standard deviation（smea）and the coefficient of variation（CVmea）. The data from peer group include mean（xpe r）,standard deviation （spe r）,the coefficient of variation（CVpe r）,standard deviation index（SDI）,coefficient of variation index（CVI）,bias and total error（TE）were calculated with Unity Real Time calculation software. Results The smea＜speer and CVmea＜CVpeer and CVI＜1.0,which indicated that the precision was well. The SDI between -2.0~2.0,which express xmea in the range of xpe r ＆#177; 2 spe r and indicated the trueness was well. TE of all test met the requirements of the national standard（GB/T 204702006）. Except GGT,TE of test met the requirements of industry standard（WS/T4032012）. Conclusion The internal quality control data inter-laboratory comparison can provide timely information about trueness and precision ,which can be used to evaluate the analytical quality of the laboratory.
出处
《热带医学杂志》
CAS
2017年第11期1469-1473,1482,共6页
Journal of Tropical Medicine
关键词
室内质量控制
实验室间比对
正确度
精密度
准确度
Internal quality control
Inter-laboratory comparison
Trueness
Precision
Accuracy
