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目的考核全国所有的省和地市级以及部分县级碘缺乏病实验室的水碘检测能力,了解各级实验室水碘检测的整体水平以及各实验室间的差异。方法采用Z比评分法进行检测结果的统计学评价,评价各个实验室的检测能力。结果参加质控考核的32个省级水碘实验室反馈率和合格率均为100%;336个地市级水碘实验室的反馈率为99.4%,合格率为98.2%;161个县级水碘实验室参加了考核,合格率为95.0%。结论全国省级实验室的检测结果非常接近,实验室内和实验室间变异很小,检测精密度和准确度均保持在较高的水平。绝大部分地市级实验室具备水碘检测能力,建议未通过考核的实验室查找原因,提高检测水平。
Objective To assess the water iodine detection ability of all prefecture-level and prefecture-level cities and some county-level iodine deficiency disorders laboratories in China, and to understand the overall level of water iodine detection in laboratories at all levels and the differences among laboratories. Methods Z-score method was used to test the statistical evaluation of the results to evaluate the detection ability of each laboratory. Results The feedback rate and pass rate of 32 provincial IOD laboratories participating in the quality control examination were all 100%. The feedback rate of 336 prefecture-level Iodine laboratories was 99.4% with a pass rate of 98.2%. 161 county-level Water iodine laboratory to participate in the assessment, the passing rate of 95.0%. Conclusion The results of the provincial provincial laboratories are very close, the variation in the laboratory and the laboratory is very small, and the precision and accuracy of the tests are kept at a high level. The vast majority of prefectural-level laboratories have the ability to detect water iodine, it is recommended that the laboratory failed to find out the reasons to improve the level of testing.