Analysis of the assessment results on water iodine tested through the external quality control network in vary iodine deficiency disorders laboratories in Shaanxi in 2017 / 中华地方病学杂志

ABSTRACT

Objective To evaluate the testing ability for water iodine at provincial,municipal and countylevel laboratories in Shaanxi Province in 2017,and to improve their detection levels.Methods One provincial,10 municipal and 66 county laboratories for the first time took part in the evaluation of testing results of water iodine.The evaluation results were statistically evaluated using the Z score method.When ｜Z｜ ≤2,it was qualified;when 2 ＜ ｜Z｜ ＜ 3,it was basically qualified;when ｜Z｜ ≥3,it was unqualified.Results All laboratories passed the external quality control assessment.Both the feedback rate and the qualified rate were 100％ (77/77).The provincial laboratory,7 municipal laboratories,and 42 county-level laboratories all had scores of ｜ Z ｜ ＜ 1,and the test results were qualified.Conclusions The testing ability of laboratories in Shaanxi Province is maintained at a higher level.It is able to provide reliable and strong technical support for the need in sustainable elimination of iodine deficiency disorders.