2017-2021年苏州市食用盐中碘复核结果分析  

Iodine check results in edible salt in Suzhou in 2017-2021

作　　者：张利明[1] 辜艳琴 苏静 王春民[1] 李建[1] 浦阳[1] ZHANG Liming;GU Yanqin;SU Jing;WANG Chunmin;LI Jian;PU Yang(Suzhou Center for Disease Control and Prevention,Suzhou,Jiangsu Province 215004)

机构地区：[1]苏州市疾病预防控制中心,江苏苏州215004

出　　处：《公共卫生与预防医学》2023年第2期73-76,共4页Journal of Public Health and Preventive Medicine

基　　金：苏州市"科教兴卫"青年科技项目(KJXW2019051);江苏省食品安全风险监测重点实验室(非法添加领域)(201809)。

摘　　要：目的了解苏州市2017—2021年盐碘县区级监测结果和市级复核结果的质量现状,为制定碘缺乏病(IDD)防治策略和措施提供科学依据。方法五年间苏州市疾控中心每年随机抽取所辖的每个县区级疾控中心300份监测盐样中的15份进行复核,数据采用相对误差对比分析和成组数据t检验进行处理。结果在符合性碘盐与非碘盐复核中,个别县区级的监测结果为非碘盐,而市级的复核结果为碘盐;在符合性碘盐与海藻碘盐(或强化盐)复核中,县区级的监测结果为碘盐,而市级的复核结果为海藻碘盐(或强化盐),且相对集中在某些县区级实验室,不符合性总量有逐年增加的趋势。县区级和市级结果之间相对误差>20%的样品份数2021年总量最少为6,2018年总量最多达25份;县区级和市级结果之间相对误差>30%的样品份数,2017年最少为0,而2018年有12份,近三年在小范围内波动。县区级和市级成组数据t检验结果显示,市级的复核结果平均值普遍高于县区级的监测结果,县区级和市级结果之间的差异无统计学意义的有21组数据(P>0.05),有统计学意义的有29组数据(P<0.05),其中2020年共有7家县区级和市级结果之间的差异显著性较小,无统计学意义,而2021年共有9家县区级和市级结果之间的差异比较显著,有统计学意义。结论此次数据的分析结果表明苏州市碘盐监测数据基本可靠、准确,同时也反映出一些问题,故在以后工作中,仍应加强IDD监测体系,加大培训力度,持续监测、复核碘盐质量,为科学调控IDD防控策略提供科学依据。Objective To understand the quality status of salt iodine monitoring results at the county level and checking results at the city level from 2017 to 2021 in Suzhou,and to provide a scientific basis for the development of iodine deficiency disease(IDD)prevention and control strategies and measures.Methods During the past five years,Suzhou CDC randomly selected 15 samples of 300 monitored salt samples from each county/district CDC each year for spot checks.The data were processed by comparative analysis of relative error and grouped data t test.Results In the conformity of iodized salt and non-iodized salt,the sample monitoring results of some counties/districts were non-iodized salt,while the city-level test results were iodized salt.In the conformity of iodized salt and seaweed iodized salt(or enhanced salt),the sample monitoring results of county/district level were iodized salt,while the test results at the city level were seaweed iodized salt(or enhanced salt).The non-conformity was relatively concentrated in some county/district laboratories,and the total amount of non-conformity tended to increase year by year.The total number of samples with relative error of>20%between the county/district and city-level results was the least in 2021,with 6,and the most in 2018,with 25.The number of samples with relative error of>30%between the county/district and city-level results was the least in 2017 being 0,while there were 12 samples in 2018,fluctuating within a small range in the past three years.The t-test results of grouped data showed that the average value of the checking results at the city level was generally higher than the monitoring results at the county level.There were 21 pairs of data with no statistical significance(P>0.05)and 29 pairs of data with statistical significance(P<0.05)between the results at the county/district level and at the city level.Among them,there were 7 counties/districts whose sample monitoring results were not significantly different from the city-level test results in 2020,while th

关 键 词：食用 盐碘 复核 

分 类 号：R155[医药卫生—营养与食品卫生学]