患者数据中位数和指数加权移动均值在实验室内仪器间末梢血RBC计数结果比对中的应用  

Patient medians and exponentially weighted moving average in comparing peripheral blood RBC count results of different instruments

作　　者：王会茹[1] 王盛华[1] 黄珊珊 吴昊[1] 于文静[1] 郭映辉[1] WANG Huiru;WANG Shenghua;HUANG Shanshan;WU Hao;YU Wenjing;GUO Yinghui(Department of Clinical Laboratory,Hebei Children's Hospital,Shijiazhuang 050031,Hebei,China)

机构地区：[1]河北省儿童医院检验科,河北石家庄050031

出　　处：《检验医学》2022年第11期1093-1097,共5页Laboratory Medicine

基　　金：河北省医学科学研究重点课题计划(20180637)。

摘　　要：目的探讨患者数据指数加权移动均值(EWMA)和中位数在实验室内仪器间末梢血检测结果比对中的应用价值。方法收集2020年6月1日—12月31日河北省儿童医院检验科实验室内红细胞(RBC)计数结果,基于AI-MA患者数据质量控制智能监控平台(简称AI-MA平台),采用EWMA法和中位数法,比较3台比对仪器(A2、A3、A4)与参比仪器(A1)截断浓度月偏差、日偏差。结果以月为统计周期时,EWMA法所得月偏差均在允许范围内,1台仪器L1浓度中位数法月偏差结果不符合;以日为统计周期时,2种方法L2浓度日偏差在允许范围内,L1、L3浓度日偏差不符合结果较多。结论EWMA法和中位数法用于实验室内仪器间月间、日间末梢血RBC计数连续、实时比对的监测效能基本相同,临床实验室可根据实际情况选用合适的比对方法。Objective To compare the application of patient medians and exponentially weighted moving average(EWMA)in in-laboratory comparison of peripheral blood red blood cell(RBC)count results by different instruments.Methods From July 1st 2020 to December 31st 2020,based on AI-MA patient datum quality control intelligent monitoring platform,EWMA method and median method were used to compare and analyze the monthly and daily deviations of 3 cut-off concentrations obtained between 3 comparison instruments(A2,A3 and A4)and reference instrument(A1).Results When month was taken as statistical cycle,the monthly deviation obtained by EWMA method was within the allowable range,and the monthly deviation obtained by median method was inconsistent with the L1 concentration of one instrument.When taking day as statistical cycle,the daily deviation of L2 concentration obtained by the 2 methods was within the allowable range,and there were many nonconformities in the daily deviation of L1 and L3 concentrations.Conclusions The monitoring efficiency of EWMA method and median method for continuous real-time comparison of peripheral blood results between instruments in the laboratory is basically the same.It is an economic and practical comparison method.

关 键 词：末梢血 实验室内 仪器间结果比对 中位数法 指数加权移动均值法 

分 类 号：R446.1[医药卫生—诊断学]