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目的:探讨室间质量评估(EQA)在县级结核病防治机构痰检工作中的作用。方法:分析2005年-2009年对县级痰检室进行EQA所抽查的6886张痰涂片质量。结果:通过开展室间质量评估,县级痰涂片痰膜的染色、大小、厚薄和脱落合格率分别从2005年的75.12%、65.38%、65.06%、85.27%提高到2008年的91.62%、93.75%、90.47%、98.70%;痰细胞合格率从2005年的79.31%逐年得高到2009年的88.64%,阳性符合率、阴性符合率分别从2005年的98.55%、99%到2009年的99.34%、98.90%。结论:室间质量评估能反映实验室的真实水平,是提高痰涂片检验质量的重要保证。
Objective: To explore the role of room quality assessment (EQA) in sputum examination of county-level TB control institutions. Methods: From 2005 to 2009, 6,886 sputum smear smears of EQA in county sputum examination room were analyzed. Results: The quality of sputum smear at the county level was improved from 75.12%, 65.38%, 65.06%, 85.27% in 2005 to 91.62% in 2008, respectively. 93.75%, 90.47% and 98.70% respectively. The passing rate of sputum cells increased from 79.31% in 2005 to 88.64% in 2009, the positive coincidence rate and the negative coincidence rate increased from 98.55% and 99% in 2005 to 99.34%, 98.90%. Conclusion: The quality assessment of laboratory can reflect the true level of laboratory and is an important guarantee to improve the quality of sputum smear test.