摘要
目的分析广东省职业卫生检测实验室的实验室间比对结果。方法采用方便抽样法,选择于2014—2018年历年参加广东省职业卫生技术服务机构实验室间比对的42家实验室(以下简称"参比实验室")为研究对象,采用四分稳健统计技术对其工作场所空气中有机物、金属、无机非金属类和生物材料中金属检测、粉尘中游离二氧化硅水平的检测结果进行统计分析。结果 42家参比实验室5年间参加比对项目共有1 205项;其中结果合格者1 114项,合格率为92.4%。工作场所空气中有机物、金属、无机非金属类和生物材料中金属、粉尘中游离二氧化硅水平检测合格率分别为93.3%、94.4%、91.6%、84.4%、91.8%。珠江三角洲地区与其他地区参比实验室比对项目合格率比较,差异无统计学意义(92.8%vs 89.6%,P>0.05);职业病防治院所、疾病预防控制系统及民营机构参比实验室比对项目合格率比较,差异无统计学意义(93.1%vs 93.6%vs 89.0%,P>0.05)。91项不合格比对项目中,35项(占38.5%)为│实验室间z比分数(z_B)│≥3,40项(占44.0%)为│实验室内z比分数(z_W)│≥3,16项(占17.6%)为│z_B│≥3且│z_W│≥3。结论广东省5年连续参加职业卫生检测实验室间比对的实验室的职业卫生检测水平较高,检测结果准确性良好。
Objective To analyze the inter-laboratory comparison results of occupational hygiene laboratories of Guangdong Province. Methods The 42 laboratories that continuously participated in the inter-laboratory comparison of occupational hygiene technical service institutions in Guangdong Province from 2014 to 2018 were selected as the research subjects Guangdong Occupational Health Test Center from 2014 to 2018 were selected by convenient sampling method. The data of detection of organic compounds, metal element, non-metal element in the workplace air, detection of metal element in biological materials, and the detection of free silica in dust were analyzed. The results were statistically analyzed by four-point robust statistical technique. Results From 2014 to 2018, a total of 1 205 items of sample detection results were submitted in these 5 years. The qualified rate of sample test was 92.4%(1 114/1 205) in these laboratories. The qualified rate of test of organics in workplace air, metals in workplace air, inorganic non-metals in workplace air, metals in biological materials and free silica in dust were 93.3%, 94.4%, 91.6%, 84.4% and 91.8% respectively. There was no significant difference in the qualified rate of sample test between the laboratories in the Pearl River delta in Guangdong Province and the laboratories in other regions the laboratories in other regions(92.8% vs 89.6%, P>0.05). There was no significant difference in the qualified rate of sample test among the occupational disease prevention and treatment institute, center for disease control and prevention and private laboratories(93.1% vs 93.6% vs 89.0%, P>0.05). Among the 91 unqualified items, 35 items were │z score of inter-laboratory(z_B)│≥ 3(38.5%), 40 items were │z score of within-laboratory(z_w)│≥ 3(44.0%), and 16 items were│z_B│≥ 3 and │z_w│≥ 3(17.6%). Conclusion The laboratories in Guangdong Province that participated in the inter-laboratory comparison of occupational health test for 5 consecutive years have a relatively high level of occupational health testing, and the test results are accurate.
作者
曾飞飞
阙冰玲
杨晓忠
张爱华
郑倩玲
ZENG Feifei;QUE Bingling;YANG Xiaozhong;ZHANG Aihua;ZHENG Qianling(Guangdong Province Hospital for Occupational Disease Prevention and Treatment,Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Treatment,Guangzhou,Guangdong 510300,China)
出处
《中国职业医学》
CAS
北大核心
2020年第3期305-309,共5页
China Occupational Medicine
基金
广东省医学科学技术研究基金(A2018502)
广东省职业病防治重点实验室(2017B030314152)
关键词
职业卫生
实验室
室间比对
检测能力
质量控制
Occupational health
Laboratory
Inter-laboratory comparison
Detectability
Quality control
