Analysis on external quality control results for iodine deficiency disorders laboratories in Shandong in 2016 / 中华地方病学杂志

ABSTRACT

Objective To evaluate the testing ability of iodine in the disease control and prevention institutes at all levels in Shandong,and to raise their testing ability.Methods The testing ability of salt iodine,water iodine and urinary iodine of iodine deficiency disorders laboratories at provincial,prefectural and county levels in Shandong in 2016 was evaluated.The testing results of salt iodine were evaluated by using reference value ± uncertainty.The testing results of water iodine and urinary iodine of all the participatory laboratories were evaluated by using standard Z score generated from laboratories participated in the examination.Results One provincial and 17 prefectural salt iodine,water iodine and urinary iodine laboratories and 30 county level salt iodine laboratories took part in the national examination.Both the feedback rate and qualified rate of the testing results were 100％.The 65 urinary iodine laboratories at the county level took part in the provincial examination.The feedback rate was 92.3％ (60/65),and the qualified rate was 75.4％ (49/65).Conclusions The results of the national examination have showed that the testing ability at all levels of the laboratory is maintained at a higher level;the results of the provincial examination have showed that the testing ability of most of the county level urinary iodine laboratories is relatively stable at a higher level.The testing ability of some county level urinary iodine laboratories is low.We should focus on strengthening the county level urinary iodine laboratory construction.