福建省龙岩市碘缺乏病病情监测结果分析

Objective To understand the current situation of iodine deficiency diserders(IDD) in Longyan City and to evaluate the effect of prevention and control measures of IDD in order to provide evidence for formulating prevention and control tactics. Methods During the year of 2006 and 2007, the 30 primary schools were screened by population proportion survey(PPS) from the 7 counties of Longyan City. Forty children aged 8-10 years in each school were randomly selected as a group to examine thyroid, and 7 children in each group were selected to measure the urine iodine and the salt iodine at the same time. The goiter rote, the median urinary iodine, the consumption rate of qualified iodized salt, the iodine salt coverage rate, the rate of qualified iodized salt and the non-iodized rate were detected. Results The goiter rate of children aged 8-10 years old in Longyan City was 0.94%(79/8438). The median urinary iodine was 259.12 μg/L. The consumption rate of qualified iodized salt was 97.86% (1462/1494). The iodine salt coverage rate was 99.46%(1486/1494). The rate of qualified iodized salt was 98.38 (1462/1486), and the non-iodized rate was 0.54% (8/1494). Conclusions All indicators have reached the national standard of eliminating IDD in Longyan City.     

福建省龙岩市碘缺乏病病情监测结果分析

Objective To understand the current situation of iodine deficiency diserders(IDD) in Longyan City and to evaluate the effect of prevention and control measures of IDD in order to provide evidence for formulating prevention and control tactics. Methods During the year of 2006 and 2007, the 30 primary schools were screened by population proportion survey(PPS) from the 7 counties of Longyan City. Forty children aged 8-10 years in each school were randomly selected as a group to examine thyroid, and 7 children in each group were selected to measure the urine iodine and the salt iodine at the same time. The goiter rote, the median urinary iodine, the consumption rate of qualified iodized salt, the iodine salt coverage rate, the rate of qualified iodized salt and the non-iodized rate were detected. Results The goiter rate of children aged 8-10 years old in Longyan City was 0.94%(79/8438). The median urinary iodine was 259.12 μg/L. The consumption rate of qualified iodized salt was 97.86% (1462/1494). The iodine salt coverage rate was 99.46%(1486/1494). The rate of qualified iodized salt was 98.38 (1462/1486), and the non-iodized rate was 0.54% (8/1494). Conclusions All indicators have reached the national standard of eliminating IDD in Longyan City.     

福建省龙岩市碘缺乏病病情监测结果分析

Objective To understand the current situation of iodine deficiency diserders(IDD) in Longyan City and to evaluate the effect of prevention and control measures of IDD in order to provide evidence for formulating prevention and control tactics. Methods During the year of 2006 and 2007, the 30 primary schools were screened by population proportion survey(PPS) from the 7 counties of Longyan City. Forty children aged 8-10 years in each school were randomly selected as a group to examine thyroid, and 7 children in each group were selected to measure the urine iodine and the salt iodine at the same time. The goiter rote, the median urinary iodine, the consumption rate of qualified iodized salt, the iodine salt coverage rate, the rate of qualified iodized salt and the non-iodized rate were detected. Results The goiter rate of children aged 8-10 years old in Longyan City was 0.94%(79/8438). The median urinary iodine was 259.12 μg/L. The consumption rate of qualified iodized salt was 97.86% (1462/1494). The iodine salt coverage rate was 99.46%(1486/1494). The rate of qualified iodized salt was 98.38 (1462/1486), and the non-iodized rate was 0.54% (8/1494). Conclusions All indicators have reached the national standard of eliminating IDD in Longyan City.     

福建省龙岩市碘缺乏病病情监测结果分析

Objective To understand the current situation of iodine deficiency diserders(IDD) in Longyan City and to evaluate the effect of prevention and control measures of IDD in order to provide evidence for formulating prevention and control tactics. Methods During the year of 2006 and 2007, the 30 primary schools were screened by population proportion survey(PPS) from the 7 counties of Longyan City. Forty children aged 8-10 years in each school were randomly selected as a group to examine thyroid, and 7 children in each group were selected to measure the urine iodine and the salt iodine at the same time. The goiter rote, the median urinary iodine, the consumption rate of qualified iodized salt, the iodine salt coverage rate, the rate of qualified iodized salt and the non-iodized rate were detected. Results The goiter rate of children aged 8-10 years old in Longyan City was 0.94%(79/8438). The median urinary iodine was 259.12 μg/L. The consumption rate of qualified iodized salt was 97.86% (1462/1494). The iodine salt coverage rate was 99.46%(1486/1494). The rate of qualified iodized salt was 98.38 (1462/1486), and the non-iodized rate was 0.54% (8/1494). Conclusions All indicators have reached the national standard of eliminating IDD in Longyan City.     

福建省龙岩市碘缺乏病病情监测结果分析

Objective To understand the current situation of iodine deficiency diserders(IDD) in Longyan City and to evaluate the effect of prevention and control measures of IDD in order to provide evidence for formulating prevention and control tactics. Methods During the year of 2006 and 2007, the 30 primary schools were screened by population proportion survey(PPS) from the 7 counties of Longyan City. Forty children aged 8-10 years in each school were randomly selected as a group to examine thyroid, and 7 children in each group were selected to measure the urine iodine and the salt iodine at the same time. The goiter rote, the median urinary iodine, the consumption rate of qualified iodized salt, the iodine salt coverage rate, the rate of qualified iodized salt and the non-iodized rate were detected. Results The goiter rate of children aged 8-10 years old in Longyan City was 0.94%(79/8438). The median urinary iodine was 259.12 μg/L. The consumption rate of qualified iodized salt was 97.86% (1462/1494). The iodine salt coverage rate was 99.46%(1486/1494). The rate of qualified iodized salt was 98.38 (1462/1486), and the non-iodized rate was 0.54% (8/1494). Conclusions All indicators have reached the national standard of eliminating IDD in Longyan City.     

福建省龙岩市碘缺乏病病情监测结果分析

Objective To understand the current situation of iodine deficiency diserders(IDD) in Longyan City and to evaluate the effect of prevention and control measures of IDD in order to provide evidence for formulating prevention and control tactics. Methods During the year of 2006 and 2007, the 30 primary schools were screened by population proportion survey(PPS) from the 7 counties of Longyan City. Forty children aged 8-10 years in each school were randomly selected as a group to examine thyroid, and 7 children in each group were selected to measure the urine iodine and the salt iodine at the same time. The goiter rote, the median urinary iodine, the consumption rate of qualified iodized salt, the iodine salt coverage rate, the rate of qualified iodized salt and the non-iodized rate were detected. Results The goiter rate of children aged 8-10 years old in Longyan City was 0.94%(79/8438). The median urinary iodine was 259.12 μg/L. The consumption rate of qualified iodized salt was 97.86% (1462/1494). The iodine salt coverage rate was 99.46%(1486/1494). The rate of qualified iodized salt was 98.38 (1462/1486), and the non-iodized rate was 0.54% (8/1494). Conclusions All indicators have reached the national standard of eliminating IDD in Longyan City.     

福建省龙岩市碘缺乏病病情监测结果分析

Objective To understand the current situation of iodine deficiency diserders(IDD) in Longyan City and to evaluate the effect of prevention and control measures of IDD in order to provide evidence for formulating prevention and control tactics. Methods During the year of 2006 and 2007, the 30 primary schools were screened by population proportion survey(PPS) from the 7 counties of Longyan City. Forty children aged 8-10 years in each school were randomly selected as a group to examine thyroid, and 7 children in each group were selected to measure the urine iodine and the salt iodine at the same time. The goiter rote, the median urinary iodine, the consumption rate of qualified iodized salt, the iodine salt coverage rate, the rate of qualified iodized salt and the non-iodized rate were detected. Results The goiter rate of children aged 8-10 years old in Longyan City was 0.94%(79/8438). The median urinary iodine was 259.12 μg/L. The consumption rate of qualified iodized salt was 97.86% (1462/1494). The iodine salt coverage rate was 99.46%(1486/1494). The rate of qualified iodized salt was 98.38 (1462/1486), and the non-iodized rate was 0.54% (8/1494). Conclusions All indicators have reached the national standard of eliminating IDD in Longyan City.     

福建省龙岩市碘缺乏病病情监测结果分析

Objective To understand the current situation of iodine deficiency diserders(IDD) in Longyan City and to evaluate the effect of prevention and control measures of IDD in order to provide evidence for formulating prevention and control tactics. Methods During the year of 2006 and 2007, the 30 primary schools were screened by population proportion survey(PPS) from the 7 counties of Longyan City. Forty children aged 8-10 years in each school were randomly selected as a group to examine thyroid, and 7 children in each group were selected to measure the urine iodine and the salt iodine at the same time. The goiter rote, the median urinary iodine, the consumption rate of qualified iodized salt, the iodine salt coverage rate, the rate of qualified iodized salt and the non-iodized rate were detected. Results The goiter rate of children aged 8-10 years old in Longyan City was 0.94%(79/8438). The median urinary iodine was 259.12 μg/L. The consumption rate of qualified iodized salt was 97.86% (1462/1494). The iodine salt coverage rate was 99.46%(1486/1494). The rate of qualified iodized salt was 98.38 (1462/1486), and the non-iodized rate was 0.54% (8/1494). Conclusions All indicators have reached the national standard of eliminating IDD in Longyan City.     

福建省龙岩市碘缺乏病病情监测结果分析

Objective To understand the current situation of iodine deficiency diserders(IDD) in Longyan City and to evaluate the effect of prevention and control measures of IDD in order to provide evidence for formulating prevention and control tactics. Methods During the year of 2006 and 2007, the 30 primary schools were screened by population proportion survey(PPS) from the 7 counties of Longyan City. Forty children aged 8-10 years in each school were randomly selected as a group to examine thyroid, and 7 children in each group were selected to measure the urine iodine and the salt iodine at the same time. The goiter rote, the median urinary iodine, the consumption rate of qualified iodized salt, the iodine salt coverage rate, the rate of qualified iodized salt and the non-iodized rate were detected. Results The goiter rate of children aged 8-10 years old in Longyan City was 0.94%(79/8438). The median urinary iodine was 259.12 μg/L. The consumption rate of qualified iodized salt was 97.86% (1462/1494). The iodine salt coverage rate was 99.46%(1486/1494). The rate of qualified iodized salt was 98.38 (1462/1486), and the non-iodized rate was 0.54% (8/1494). Conclusions All indicators have reached the national standard of eliminating IDD in Longyan City.     

福建省龙岩市碘缺乏病病情监测结果分析

Objective To understand the current situation of iodine deficiency diserders(IDD) in Longyan City and to evaluate the effect of prevention and control measures of IDD in order to provide evidence for formulating prevention and control tactics. Methods During the year of 2006 and 2007, the 30 primary schools were screened by population proportion survey(PPS) from the 7 counties of Longyan City. Forty children aged 8-10 years in each school were randomly selected as a group to examine thyroid, and 7 children in each group were selected to measure the urine iodine and the salt iodine at the same time. The goiter rote, the median urinary iodine, the consumption rate of qualified iodized salt, the iodine salt coverage rate, the rate of qualified iodized salt and the non-iodized rate were detected. Results The goiter rate of children aged 8-10 years old in Longyan City was 0.94%(79/8438). The median urinary iodine was 259.12 μg/L. The consumption rate of qualified iodized salt was 97.86% (1462/1494). The iodine salt coverage rate was 99.46%(1486/1494). The rate of qualified iodized salt was 98.38 (1462/1486), and the non-iodized rate was 0.54% (8/1494). Conclusions All indicators have reached the national standard of eliminating IDD in Longyan City.     

2006-2010年江西省新建县居民户碘盐监测结果分析

目的 分析江西省新建县居民碘盐食用情况,为消除碘缺乏病(IDD)防治工作提供科学依据.方法 2006-2010年,在江西省新建县,每年按东、西、南、北、中抽取9个乡(镇、街道),每个乡(镇、街道)抽取4个行政村(居委会),每个行政村(居委会)抽取8户居民食用盐,采用直接滴定法检测盐碘.结果 2006-2010年共检测1440份居民户食盐,合格碘盐1379份,不合格碘盐34份,非碘盐27份,碘盐覆盖率为98.13%(1413/1440),碘盐合格率为97.59%(1379/1413),合格碘盐食用率为95.76%(1379/1440),非碘盐率为1.88%(27/1440).结论 新建县各乡镇居民户合格碘盐达到国家消除IDD的控制标准,但有少数乡镇碘盐质量还有待提高.在今后工作中还应利用多种形式加大宣传IDD防治知识,对广大群众进行健康教育,增强自我防护意识,使他们能自觉抵制私盐,拒绝购买非碘盐.

Abstract：

Objective To find out households consumption of iodized salt in Xinjian county, and to provide scientific basis for prevention and treatment of iodine deficiency disorders(IDD). Methods From 2006 - 2010 in Jiangxi province, according to the direction of east, west, south, and north, nine townships(streets) were selected,in each township (street), 4 administrative villages (committees) were selected, in each administrative village(committee) 8 households were selected to collect their edible salt each year, direct titration method was adopted to detect salt iodine. Results From 2006 - 2010 a total of 1440 salt samples were collected, of which 1379 were qualified iodized salt, 34 unqualified, 27 non-iodized salt; iodized salt coverage rate, qualified iodized salt and iodized salt consumption rates were 98.13% (1413/1440), 97.59% (1379/1413) and 95.76% (1379/1440),respectively, and the rate of non-iodized salt was 1.88% (27/1440). Conclusions The intake rate of qualified iodized salt in Xinjian county have reached the standards of eliminating IDD. The quality of iodized salt should be improved in few counties. In the future, we should also increase the use of various forms advocacy of IDD prevention and treatment, and educate the masses to enhance self-protection awareness, so that they can consciously resist the salt smuggling, and refuse to buy non-iodized salt.     

1996-2007年江苏省常州市碘盐监测结果分析

目的 了解江苏省常州市食盐加碘以来生产和居民户层次碘盐合格率及食用情况.方法 每年进行碘盐监测,分食盐批发企业与居民户2个层次,盐碘测定采用GB/T 13025.7-1999中的直接滴定法,川盐或特殊盐采用仲裁法测定;对食盐批发企业与其专营地区居民户盐样含碘量进行比较.结果 1996-2000年在常州市区内共抽检3个批发企业盐样227批、5675份,批质量合格率为60.79%(138/227),碘盐合格率为61.83%(3509/5675);2001-2007年共抽检批发企业盐样252批、2556份,批质量合格率为100.00%(252/252),碘盐合格率为99.88%(2553/2556).1996-2000年抽检236个村中的1583户居民家中盐样,碘盐合格率为74.24%(1170/1576),合格碘盐食用率为73.9l%(1170/1583),盐碘中位数为45.14 mg/kg;2001-2007年抽检1656村中的13 140户居民家中盐样,碘盐合格率为98.03%(12 830/13 088).合格碘盐食用率为97.64%(12 830/13 140),盐碘中位数为30.13 mg/kg.3个盐业批发企业中,盐碘最大相差3.46 mg/kg.居民户盐碘较批发企业减少4.95%(1.65/33.35).结论 常州市碘盐合格率和食用情况在食盐加碘防治碘缺乏病的起始阶段即达到国家要求.居民户层次碘盐质量直接与批发企业供应的碘盐有关,食盐从批发企业到居民户盐碘有损失现象.     

2001-2009年重庆市碘盐监测结果分析

目的 监测2001-2009年重庆市碘盐质量变化,分析其影响因素.方法 在重庆市,按东、西、南、北、中5个方位进行抽样.在碘盐生产、批发环节,前4个方位各抽2个单位,后1个方位抽1个单位,不足9个单位的,则全部抽样,每个单位每月抽1批9份盐样;在居民户环节,以区(县)为单位,前4个方位各抽2个乡(镇),后1个方位抽1个乡(镇),每个乡(镇)抽2个村,每个村抽20份盐样,用氧化还原法检测含碘量.在碘盐生产、批发环节,计算批质量合格率;在居民户环节,计算碘盐覆盖率和合格碘盐食用率.用趋势检验、方差分析和X2检验对数据进行统计学分析.结果 2001-2009年,碘盐生产批质量合格率2001年为92.9%(13/14),其余各年均为100.0%;批发批质量合格率为88.7%(282/318)～99.8%(431/432),其中,2001和2002年均明显低于2003-2009年(X2值范围为4.98～45.69,P均<0.05或<0.01),2003年明显低于2004和2006-2009年(X2值范围为5.19～12.13,P均<0.05或<0.01).居民碘盐覆盖率和合格碘盐食用率分别为94.2%(11 154/11 841)～98.9%(14 061/14 217)和83.5%(9 887/11 841)～95.8%(13 449/14 039),均呈上升趋势(F值分别为9.27、26.39,P均<0.05),合格碘盐食用率达90%以上的区(县)数量逐年增加.盐碘均数生产环节为29.71～36.25 mg/kg,批发环节为31.26～36.13 mg/kg,均呈逐年下降趋势(F值分别为35.45、140.59,P均<0.01);居民户环节盐碘均数为28.84～30.98 mg/kg,较为稳定(F=3.05,P>0.05).各年从生产、批发至居民户盐碘均显著下降(F值范围为38.46～671.23,P均<0.01).结论 重庆市碘盐质量和居民碘盐覆盖率、合格碘盐食用率不断提高.碘盐生产企业未严格按照标准加碘和加碘均匀度差是影响盐碘的因素.

Abstract：

Objective To monitor the quality changes of iodized salt and analyze its impact factor in Chongqing between 2001 and 2009. Methods Salt samples were collected according to the east, west, south,north and center locations in iodized salt production, wholesale and household sectors. Two units in iodized salt production and wholesale segment were sampled from north, south, east and west places and only 1 unit was sampled from the central place. Nine samples were collected every month in each place. If the place had less than 9 units, and then taken all the units. About resident household, 2 townships were sampled from north, south, east and west places, and 1 township was sampled from the central place, then 20 samples were collected from each township. Iodine content was detected by oxidation-reduction assay. The index of mean iodine, qualified rate from factories and wholesale, coverage rate and taking rate of qualified iodized salt in residents were calculated.Significance was analyzed by trend test, analysis of variance and X2 test. Results The qualified rate of iodized salt from the manufacturers was 92.9%(13/14) in 2001 and the rate was 100.0% each year from 2002 to 2009. The qualified rates of iodized salt from the wholesale were 88.7%(282/318) - 99.8%(431/432). The rates of 2001 and 2002 were lower than that of other years(X2 = 4.98 - 45.69, all P< 0.05 or < 0.01). The coverage rate and taking rate of qualified iodized salt in residents were 94.2% (11 154/11 841 ) - 98.9% ( 14 061/14 217), 83.5% (9 887/11 841 ) -95.8% (13 449/14 039), respectively. The rates showed an increasing tendency (F = 9.27, 26.39, all P < 0.05).The districts(counties) with qualified iodized salt consumption rate > 90% kept increasing. The mean iodine from the manufacturers and wholesale were 29.71 - 36.25, and 31.26 - 36.13 mg/kg, respectively. The iodine level showed a descending trend(F = 35.45, 140.59, all P < 0.01 ). The mean iodine level from the inhabitants were 28.84 - 30.98 mg/kg which remained stable (F = 3.05, P > 0.05 ). The iodine level from manufacturers, wholesale to inhabitants showed an descending trend(F = 38.46 - 671.23, all P < 0.01 ). Conclusions The surveillance results of iodized salt shows an increasing tendency in quality of iodized salt, eoverage rate and taking rate of qualified iodized salt. Factors that affect the quality of iodized salt is that the enterprise does not add iodine to salt strictly by the standard.     

2008年全国碘盐监测结果分析

目的 掌握我国居民层次碘盐食用情况,及时发现存在的问题,为政府制定碘缺乏病防治策略提供依据.方法 2008年,按照<全国碘缺乏病监测方案(试行)>要求,在全国31个省份以县为单位,新疆生产建设兵团以师为单位进行碘盐监测.每个县按所辖乡镇数量的不同,有9个以上乡镇的县,按东西南北中5个方位采用单纯随机抽样方法抽取9个乡、每个乡抽4个村、每个村抽8户居民;有9个和以下乡镇的县,按东西南北中5个方位各抽取1个乡、每个乡抽4个村、每个村抽15户居民.采集居民户家中的盐样进行碘盐测定,统计和分析各省居民碘盐覆盖率、碘盐合格率和合格碘盐食用率.碘盐测定采用直接滴定法,川盐及其他强化食用盐测定采用仲裁法.结果 全国共有2817个县(区、市、旗)及新疆生产建设兵团的14个师上报了监测结果,监测覆盖率99.96%(2831/2832).盐碘均数为31.51 mg/kg,有16个省份盐碘变异系数＞20.00%.共监测826 968户居民家中食用盐,其中碘盐798 725份,非碘盐28 243份,不合格碘盐20 270份.经人口加权,全国碘盐覆盖率97.48%,碘盐合格率为97.16%,合格碘盐食用率为94.79%.27个省(区、市)和新疆生产建设兵团的居民户合格碘盐食用率≥90.00%,海南、西藏、新疆、天津(省、区、市)的合格碘盐食用率＜90%.有2487个县(市、区、旗)的合格碘盐食用率≥90.00%,占实际监测县数的87.82%(2487/2831),104个县(市、区、旗)和新疆生产建设兵团的1个师碘盐覆盖率＜80.00%.结论 全国有16个省(区、市)的盐碘变异程度较高,碘盐质量有待提高.全国碘盐覆盖率和合格碘盐食用率总体较好,均≥90.00%,但海南、西藏、新疆等省(区)非碘盐情况仍然较为突出,碘盐覆盖水平较低.

Abstract：

Objective To study the national surveillance results and learn the current situation of iodized salt consumption at household level in 2008, and to find out the remaining problems and to provide scientific basis for developing control strategies against iedine deficiency disorders. Methods In 2008, in accordance with the requirements of the "National Iodine Deficiency Disorders Surveillance Program (Trial)", the surveillance was conducted at county level in 31 provinces and at division level in Xinjiang Production and Construction Corps. In each county 9 townships were randomly selected according to their sub-area positions of east, west, south, north and center;4 villages were randomly sampled in each chosen township;8 households were randomly selected in each chosen village. In every county with 9 or less townships, 1 township was randomly selected respectively in the east, west, south,north and center sub-areas;4 villages were randomly sampled in each chosen township;15 households were randomly selected in each chosen village. Edible salt from these households was collected. Iodized salt coverage rate, proportion of qualified iodized salt and consumption rate of the qualified iodized salt of the households in each province were counted and analyzed. Iodized salt was determined by direct titration;the salt samples from Sichuan and other enhanced salt were detected by arbitration. Results Totally 2817 counties (districts, cities, banners) and 14 divisions of the Xinjiang Production and Construction Corps reported the monitoring results, monitoring coverage reached 99.96%(2831/2832). Mean of iodine content was 31.51 mg/kg.Sixteen provinces had a variation coefficient of iodine content for more than 20%. A total of 826 968 households were tested of their edible salt, in which iodized salt 798 725 copies, non-iodized salt 28 243 copies, and unqualified iodized salt 20 270 copies. Weighted by population,at national level, the coverage rate of iodized salt was 97.48%, qualified rate of iodized salt 97.16%, and consumption rate of qualified iodized salt was 94.79%.Twenty seven provinces (autonomous regions and municipalities) and Xinjiang Production and Construction Corps had a qualified iodized salt coverage rate of above or equal 90.00%. Tibet, Hainan, Xinjiang and Tianjin provinces (regions) had a qualified iodized salt coverage rate lower than 90.00%. Further, 2487 counties had the rate high or equal 90.00% accounting for 87.82% (2487/2831) of complementing monitoring counties. One hundred and four counties and 1 division of the Xinjiang Production and Construction Corps had the coverage rate of iodized salt below 80.00%. Conclusions Sixteen provinces(autonomous regions and municipalities) have relatively a high degree of variation coefficient in salt iodine content. The quality of iodized salt needs to be improved. The coverage rate of iodized salt and the qualified iodized salt at national level are both above or equal 90.00%. However, the non-iodized salt problem is still serious and have a relatively lower coverage of iodized salt in Tibet, Hainan and Xinjiang.     

2001-2009年甘肃省碘盐监测结果及非碘盐问题地区分布特征分析

目的 分析2001-2009年甘肃省碘盐监测结果及非碘盐问题地区分布特征,为制订碘缺乏病防治对策提供依据.方法 按照国家碘盐监测方案,甘肃省对生产批发(2001-2007年)和居民户(2001-2009年)两个层次进行监测.盐碘测定采用直接滴定法(GB/T 13025.7-1999),川盐或特殊盐采用仲裁法测定.合格碘盐判定标准为(35±15)mg/kg(20～50 mg/kg),非碘盐判定标准为＜5 mg/kg.结果 2001-2007年共监测生产批发层次盐样4900批,批质量合格率为97.80%(4792/4900).2001-2009年居民户非碘盐率均＜5%,碘盐覆盖率均＞90%,合格碘盐食用率2003年以后均＞90%.2001-2009年共监测出非碘盐问题市(州)23年次,其中临夏州、武威市分别占39.1%(9/23)和21.7%(5/23);共监测出非碘盐问题县(区)123年次,其中少数民族和国家级贫困县有68年次,占55.3%(68/123).2001-2005年、2006-2009年少数民族和国家级贫困县分别占非碘盐问题县的49.4%(44/89)和70.6%(24/34).结论 甘肃省生产批发层次碘盐质量状况良好,居民户合格碘盐食用率达到国家碘缺乏病消除标准.但少数民族地区和贫困地区的非碘盐问题突出,在今后一段时期内将成为甘肃省碘缺乏病防治的重点地区.

Abstract：

Objective To analyze monitoring results of iodized salt and distribution characteristics of problem areas with non-iodized salt in Gansu province during 2001 - 2009 and to provide a basis to develop countermeasures to iodine deficiency disorders. Methods According to the criterion of "The National Scheme of Iodized Salt Surveillance", two levels of monitoring were carried out on production and wholesale-level(during 2001 -2007) and household-level(during 2001 - 2009). Salt iodine was determined by direct titration method (GB/T13025.7-1999), and Sichuan salt or special salt was determined with an arbitration method. Criteria for qualified iodized salt was (35 ± 15)mg/kg(20 - 50 mg/kg), and for non-iodized salt was ＜ 5 mg/kg. Results During 2001 - 2007, a total of 4900 salt samples at production and wholesale-levels were examined, with a qualification rate of 97.80% (4792/4900). Non-iodized salt rates were all below 5% in Gansu province, consumption rate of qualified iodized salt was higher than 90% after 2003. During 2001 - 2009, cities(states) with non-iodized salt problems appeared 23 times, with Linxia accounting for 39.1%(9/23), Wuwei accounting for 21.7%(5/23). During 2001 -2009, counties(districts) with non-iodized salt problem appeared 123 times, including 68 times of ethnic minorities and state poverty counties, accounting for 55.3%(68/123). During 2001 - 2005 and 2006 - 2009, ethnic minorities and state poverty counties were accounting for 49.4%(44/89) and 70.6%(24/34) in counties with non-iodized salt problem. Conclusions The quality of iodized-salt at production and wholesale level is satisfactory in Gansu province, household consumption rate of qualified iodized salt have reached national standard for eliminating iodine deficiency disorders. But ethnic minorities and state poverty counties are main regions with non-iodized salt problem,these areas will be the key areas of prevention of iodine deficiency disorders in Gansu province in the future.     

2008年西藏碘盐监测结果分析

目的 了解西藏食用盐覆盖情况和质量,为下一步碘缺乏病的防治工作提供科学依据.方法 按照<精制盐工业主要产品取样方法>,2008年在西藏碘盐加工企业,取1个批次15份盐样检测盐碘;在每个县(市、区)的东、南、西、北、中5个方位各抽取1个乡(镇、街道),如果监测县所辖不足5个乡数则每个乡均进行抽样;每个乡(镇、街道)随机抽取4个行政村(居委会),每个行政村抽取15户居民,抽取住户食用盐盐样检测盐碘.结果 共检测碘盐加工厂1个,1个批次的15份盐样全部合格,盐碘为(34.6±1.58)mg/kg;共监测居民食用盐样21 107份,其中碘盐11 203份,碘盐覆盖率为53.08%.其中西藏山南地区碘盐覆盖率94.31%(3395/3600)最高,那曲、昌都、阿里地区较低,分别为29.84%(897/3006)、24.94%(823/3300)、17.08%(205/1200).结论 西藏的碘盐质量符合国家要求,但碘盐覆盖率整体水平较低;建议继续按国家要求实行以食盐加碘为主、投服碘油丸为辅的综合防治策略.     

石家庄市碘盐质量与重点人群尿碘水平调查结果

目的 了解石家庄市实行全民食盐加碘防治碘缺乏病后碘盐质量与8～10儿童、育龄妇女尿碘状况.方法 2004-2008年,在石家庄市对碘盐生产企业,每月对每批生产的碘盐按东、南、西、北、中(1份)5个方位抽检盐样9份;在石家庄市的23个县(区),抽取210个行政村(居委会),每个行政村(居委会)再抽取8户居民,采集家中盐样;抽取4名育龄妇女,采集尿样.2004-2008年共抽取160所小学,每所小学抽取8～10岁学生20名,采集尿样.盐碘测定采用直接滴定法,尿碘测定采用过硫酸铵消化-砷铈催化分光光度法.结果 2004-2008年,石家庄市生产企业盐碘合格率均＞99%;居民碘盐覆盖率均＞95%,非碘盐率＜5%;碘盐合格率除2004年为87.10%外,其余年份均＞90%;合格碘盐食用率除2004年(83.08%)未达到国家碘缺乏病消除标准(90%)外,其余年份均＞90%.8～10岁儿童和育龄妇女尿碘中位数均＞100μg/L,且＜50μg/L的比例＜10%.结论石家庄市碘盐生产企业碘盐质量和儿童、育龄妇女碘营养都已经达到国家消除碘缺乏病阶段目标要求.     

2009年河南省信阳市居民层次碘盐监测结果

目的了解信阳市居民食用碘盐情况,及时发现问题并采取相应的干预措施。方法根据《河南省碘盐监测方案》,碘盐生产、批发企业每月按东、西、南、北、中5个方位抽取一批9份盐样检测含碘量;居民户碘盐监测,在每县（区）按东、西、南、北、中划分5个方位抽取9个乡（镇、街道办事处）,每个乡（镇、街道办事处）抽取4个行政村（居委会）,每个村（居委会）抽取8份盐样,每县（区）共采集288份盐样检测含碘量。结果居民层次非碘盐率0.21%,碘盐覆盖率99.79%,碘盐合格率97.18%,合格碘盐食用率96.98%。结论从碘盐质量指标上看,信阳市已提前完成了全市消除碘缺乏病目标;一些遍远地区还存在一定的非碘盐冲击和不合格碘盐食用情况,有向市区转移的趋势。     

2004年山西省碘盐监测结果分析

目的全面、准确了解山西省碘盐现况,为进一步推动持续消除碘缺乏病工作提供科学依据。方法根据《全国碘盐监测方案》(试行),第一层次每个一级批发企业每月按东、南、西、北、中5个方位抽取一批 9份盐样检测其含碘量;第二层次每县按东、南、西、北、中5个方位抽取9个乡,每个乡抽4个村,每个村抽取8 份盐样,每县共采集288份盐样检测其含碘量。结果全年共监测第一层次碘盐52批次,批质量合格率100％, 盐碘均值32．22 mg/kg,变异系数16．17％,标准差5．21mg／kg;第二层次共监测居民食用盐86个县23705份, 碘盐覆盖率96．06％,碘盐合格率94．86％,合格碘盐食用率91．50％。结论山西省总体上处于碘缺乏病可持续消除状态,但非碘盐冲击问题在局部地区依然存在。     

平顶山市2006～2010年居民户碘盐监测结果分析

目的分析平顶山市居民碘盐食用情况,为消除碘缺乏病(IDD)防治工作提供科学依据。方法 2006～2010年,在平顶山市,每年按照东、西、南、北、中抽取9个乡(镇),每个乡(镇)抽取4个行政村(居委会),每个行政村(居委会)抽取8户居民食用盐。采用直接滴定法检测碘盐。结果 2006～2010年共检测13 668份居民户食用盐,合格碘盐12 685份,不合格碘盐510份,非碘盐443份,碘盐覆盖率为96.54%(13 225/13 668)。碘盐合格率为96.94%(12 685/13325),合格碘盐食用率93.59%(12 685/13 668),非碘盐率3.24%(443/13 668)。结论平顶山市各县(区)居民户合格碘盐达到国家消除碘缺乏病(IDD)的控制标准,但有少数县(区)碘盐质量有待提高。在今后的工作中还应利用多种形式加大宣传IDD防治知识,对广大群众进行健康教育,增强自我防护意识,使他们能自觉抵制私盐,拒绝购买非碘盐。