1995-2009年宁夏全民食盐加碘防治碘缺乏病的效果观察

Observation on the Effect of Prevention and control for Iodine Deficiency Disorders by Universal Iodization in Ningxia from 1995 to 2009

目的分析评价宁夏全民食盐加碘14年碘缺乏病的防治效果。方法用PPS抽样法开展人群流行病学调查,以触诊法或B超法检查8-10岁学生的甲状腺容积,用直接滴定法检测盐碘含量、硫酸胺消化一砷铈催化分光光度法检测尿碘含量。结果全民食盐加碘14年来,8-10岁学生的甲状腺肿大率由1995年的18.9%下降到2009年的2.3%(χ2=417.5,P<0.05),并自1999年以来一直维持在5%以下;尿碘中位数均维持在100μg/L以上,至2009年碘营养趋于适宜水平。结论采取以食盐加碘为主的综合防治措施,并不断科学调整与逐步完善防治措施是防治碘缺乏病的成功经验。

Objective To evaluate the effects of prevention and control for iodine deficiency disorders by universal salt iodization from 1995 to 2009 in Ningxia, then to provide the basis for adjusting the strategies and measures of prevention and control for iodine deficiency disorders. Methods sampling method was used to carry out epidemiological survey population, hand touch or B - ultrasound to inspect the volume of goiter of 8 - 10 year - old students, and directed titrimetrie method was used to detect content of salt iodine, and arsenic - ceruim contact method was used to determine urine iodine. Results 8 - 10 year - old student＇s goiter rate dropped from 18.9% in 1995 to 2.3% in 2009 and maintained below 5% since 1999 （ χ2 = 417.5, P 〈 0.05 ）. The median of urine iodine maintained above 100μg/L and was suitable in 2009. Conclution Salt iodization and other integrated measures would be adopted. These measures also would be adjusted and consummated gradually and scientifically.