全国碘缺乏病实验室质控网络运行10年总结

Report on National Quality Assurance Programme for Laboratories of Iodine Deficiency Disorders in past ten years

目的总结全国碘缺乏病实验室外质控网络10年运行结果。方法尿碘采用"Z"比评分的方法,盐碘采用标准参考值±不确定度的方法对检测结果进行评价。结果参加质控网络的实验室数量由1999年的626个增加至2008年的1709个;省级尿碘和盐碘实验室连续5年保持全部合格;地市级尿碘和盐碘实验室的合格率由1999年70.1%和87.8%分别上升到2008年的92.6%和99.4%;县级盐碘实验室合格率由1999年的58.1%上升到96.1%。结论通过10年来全国实验室网络的运行和持续的技术培训,各级实验室的检测能力有了明显的提高。

Objective To summary the results of national quality assurance programme for laboratories of iodine deficiency disorders from 1999 to 2008. Methods The urine iodine testing results was evaluated with ＂Z＂scores statistics, and salt iodine testing results with reference value ＋ uncertainty. Results The number of laboratory in the quality assurance programme increased from 626 in 1999 to 1709 in 2008. All 31 provincial laboratories were qualified in the proficiency testing for 5 succes- sive years. At the prefecture level, the qualified rate for urine laboratories improved from 70.1 percent in 1999 to 92.6 percent in 2008 and the qualified rate for salt laboratories improved from 87.8 percent in 1999 to 99.4 percent in 2008. At the county level, the qualified rate for salt laboratories improved from 58.1 percent in 1999 to 96.1 percent in 2008. Conclusions Through national laboratory network operation and sustained technical training, the testing ability at different level laboratories has been significantly improved.