2020年陕西省碘缺乏病实验室尿碘检测能力验证报告  

Report of national proficiency testing for urinary iodine among the laboratories of iodine deficiency disorders in Shaanxi Province in 2020

作　　者：任宇飞[1] 白皓 杜怡[1] Ren Yufei;Bai Hao;Du Yi(Laboratory of Shaanxi Institute of Endemic Disease,Xi'an 710003,China)

机构地区：[1]陕西省地方病防治研究所实验室,西安710003

出　　处：《中华地方病学杂志》2021年第10期857-860,共4页Chinese Journal of Endemiology

摘　　要：目的评价2020年陕西省尿碘外质控网络运行情况,了解陕西省碘缺乏病实验室尿碘检测能力,为碘缺乏病流行病学监测和防治工作提供技术支持。方法2020年,陕西省共有118个碘缺乏病实验室采用砷铈催化分光光度法对国家下发的2个浓度的尿碘外质控样品进行测定,并采用标准值±不确定度方法和Z比评分法对检测结果进行统计学分析。结果全省参加尿碘外质控考核的118个实验室全部反馈了考核结果。采用标准值±不确定度方法进行评价,118个实验室的检测结果均在不确定度范围内,全部合格。采用Z比评分法进行评价,有2个县级实验室的│Z│间分值≥3,其余实验室的考核结果全部合格,合格率为98.31%(116/118),两种评价方法的结果基本相符。结论经过多年的外质控网络运行,陕西省各级实验室的尿碘检测能力稳定可靠,大部分实验室通过了能力验证。建议个别实验室要加强内部质量控制,提高检测能力,为碘缺乏病的监测和防治提供坚实基础。Objective To evaluate the operation of urinary iodine external quality control network in Shaanxi Province in 2020,to know the urinary iodine detection capabilities of iodine deficiency disorders(IDD)laboratories in Shaanxi Province,so as to ensure the technical support for epidemiological surveillance and control of IDD.Methods In 2020,a total of 118 IDD laboratories in Shaanxi Province participated in the external quality control assessment,and the two concentrations of urinary iodine quality control samples were measured by As^(3+)-Ce^(4+) catalytic spectrophotometry.The testing results of urinary iodine were statistically analyzed with standard value±uncertainty and Z-ratio scoring methods.Results All the 118 laboratories participating in the external quality control assessment of urinary iodine in the province had feedback the assessment results.The standard value±uncertainty method was used for evaluation,the test results of 118 laboratories in the province were all within the uncertainty range,and all were qualified.The Z-ratio scoring method was used for evaluation,there were two county level laboratories with an inter-laboratory|Z|score≥3,and the evaluation results of other laboratories were all qualified,with a qualified rate of 98.31%(116/118).The results of the two evaluation methods were basically consistent.Conclusions After years of external quality control network operation,the urinary iodine detection capability of laboratories at all levels in Shaanxi Province is stable and reliable,and most laboratories have passed the ability verification.It is suggested that individual laboratory should strengthen internal quality control and improve detection capabilities to lay a solid foundation for monitoring and prevention of IDD.

关 键 词：碘 实验室 质量控制 

分 类 号：R197.65[医药卫生—卫生事业管理]