Analysis of the external quality assessment of fluoride in water in Liaoning Province in 2016
10.3760/cma.j.issn.2095-4255.2018.02.016
- VernacularTitle:2016年辽宁省水中氟化物外质控考核结果分析
- Author:
Zhongyuan KAN
1
;
Zhaoxia ZHENG
;
Jianhui WANG
Author Information
1. 辽宁省疾病预防控制中心地方病防制所
- Keywords:
Fluoride;
Water;
Lab;
Quality control
- From:
Chinese Journal of Endemiology
2018;37(2):152-154
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the detection capability in determining water fluoride at center for disease control and prevention (CDC) of Liaoning Province, and to promote the improvement of detection quality. Methods The detection results of the external quality assessment of fluoride in water from 66 CDC labs in Liaoning Province in 2016 were analyzed by using standard Z score. The potential outliers were determined by Youden plot. The determine standard of the Z score:│Z│≤2 was satisfacted;2<│Z│<3 was qualified,but suggesting there was a problem, need to find the cause of the error; │Z│≥3 was not satisfied. Results According to the results of standard Z score,there were 66 labs satisfacted, the satisfacted rate was 100.0% (66/66). According to the Youden plot, there were 4 possible outliers (6.1%, 4/66) which need to be rechecked. Conclusions The capability in determining water fluoride at CDC of Liaoning Province meet the standards, but individual laboratories need to improve the quality of testing. The internal quality control of the laboratory is very important. All CDCs should improve the detection capability continuously.
