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.%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.
展开▼
