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目的 观察Origin软件对2017年辽宁省尿碘外质控考核结果的评价作用,促进Origin软件在评价实验室检测能力中的应用,提高辽宁省疾病预防控制机构实验室尿碘检测能力.方法 对2017年辽宁省1个省级、14个市级、33个县级疾病预防控制机构实验室进行编号,1 ～ 15号:省、市级,16～48号:县级.使用Origin 9.5软件制作尿碘外质控考核结果的Z比分数柱状图、重复测定结果偏差棒图和Youden图.Z比分数评价标准:｜Z｜≤2表示满意;2＜｜Z｜＜3表示有问题;｜Z｜≥3表示不满意.根据实验室间和实验室内的Z比分值,分析系统误差和随机误差.结果 大部分实验室的室间及室内｜Z｜≤2,考核结果为满意;36号实验室的室间及室内｜Z｜均＞3,考核结果为不满意,该实验室检测结果同时存在系统误差和随机误差.重复测定结果偏差棒图显示,21号实验室的高浓度检测数据精密度较差.结论 Origin软件适用于评价实验室考核结果,县级疾病预防控制机构实验室尿碘检测能力仍有待提高,个别实验室存在系统误差和随机误差,需查找误差产生的原因,加强实验室内部质量控制,提高实验室检测质量.“,”Objective Software Origin was used to evaluate urine iodine external quality control results in Liaoning Province in 2017,and to promote the application of software Origin in laboratory proficiency testing and to improve the urine iodine detection capability of laboratories in Liaoning Province.Methods In 2017,1 provincial-,14 municipal-and 33 county-level disease prevention and control institution laboratories in Liaoning Province were numbered,1-15:provincial and municipal levels,16-48:county-level.Software Origin 9.5 was used to produce the Z-ratio histogram,the deviation bar graph of repeated measurement results and the Youden plot of urine iodine external quality control results.When ｜Z｜ ≤2,it was satisfactory;when 2 ＜ ｜Z｜ ＜ 3,it indicated problems;when ｜Z｜ ≥3,it was not satisfactory.Based on ｜ Z｜ scores of laboratories,systematic errors and random errors were analyzed.Results Most laboratories had scores of ｜Z｜ ≤2,the results were satisfactory.Laboratory 36 had scores of ｜Z｜ ＞ 3,the result was not satisfactory,there were both systematic errors and random errors.The deviation bar graph of repeated measurement results showed that the precision of the high concentration test results in laboratory 21 was poor.Conclusions The software Origin is suitable to evaluate laboratory proficiency testing.The capacity of urine iodine detection in the county-level laboratories in Liaoning Province needs to be improved.Systematic errors and random errors still exist in individual laboratories.It is necessary to find the causes of errors,and strengthen laboratory internal quality control and improve the quality of the laboratory.