2018年陕西省碘缺乏病实验室尿碘测定的实验室间质量控制结果分析

Analysis of inter-laboratory quality control results of urinary iodine determination among Iodine Deficiency Disorder Laboratory in Shaanxi Province in 2018

目的评价陕西省碘缺乏病实验室尿碘检测能力,分析陕西省尿碘实验室建设质量。方法2018年,选择陕西省10个市级和107个县级疾病预防控制中心或地方病防治所实验室,采用砷铈催化分光光度测定方法对2个质量浓度的尿碘质控样品进行测定,并用Z比评分法评价尿碘质控检测结果。结果参加质控考核的117个实验室全部反馈检测结果。实验室间│Z│分值≥3的有1个,实验室内│Z│分值≥3的有3个,合格率为96.58%(113/117)。107个县级实验室,实验室间│Z│分值≥3的有1个,实验室内│Z│分值≥3的有3个,合格率为96.26%(103/107)。结论陕西省尿碘实验室建设质量较好,尿碘检测能力处于较高水平,为陕西省碘缺乏病防治工作奠定了坚实的基础。

Objective To evaluate the urinary iodine detection ability of Iodine Deficiency Disorder Laboratory in Shaanxi Province,and to test the quality of laboratory construction.Methods In Shaanxi Province,ten city-level and 107 county-level urinary iodine labs of Center for Disease Control and Prevention or Institute for Endemic Disease Prevention and Control were selected in 2018,and two urinary iodine quality-control samples were measured by As^3+-Ce^4+ catalytic spectrophotometry.The results of urinary iodine quality control were evaluated through standard Z score generated from all the participatory labs.Results All 117 labs had feedback their testing results.There was one lab with an inter-laboratory │Z│ score≥3,and 3 labs with inter-laboratory │Z│ score≥3,and the qualified rate was 96.58%(113/117).In 107 county-level urinary iodine labs,there was one lab with an inter-laboratory│Z│ score≥3,and 3 labs with inter-laboratory│Z│ score≥3,and the qualified rate was 96.26%(103/107).Conclusions The construction of urinary iodine lab has achieved great results in Shaanxi Province,the testing ability of iodine determination laboratory is maintained at a high level,which has laid a solid foundation for prevention and treatment of iodine deficiency disorders in Shaanxi Province.