对我国现行碘盐干预措施的实施研究与效果评价

SURVEY AND EFFECTIVENESS EVALUATION ON IODIZED SALT INTER VENTION MEAMS IN FORCE IN OUR COUNTRY

为探讨我国制定的新的碘盐浓度标准能否纠正病区居民的碘营养缺乏,在保证碘盐质量的前提下,对从未采取过碘盐防治的郑州市进行了碘盐干预措施实施研究。结果表明:居民食用新浓度合格碘盐两年后,碘营养水平显著提高,8～10岁儿童甲状腺肿大率(B超法)由供碘盐前的8.92％降至1.49％;儿童尿碘水平由76.98μg/L提高到285.2μg/L孕妇尿碘水平达到313.2μg/L;盐库、销售点和用户三级碘盐合格率都在90％以上,三项指标均达到国家制定的IDD消除标准。防治效果证明,新的碘盐浓度标准是科学可行的,只要在碘盐的加工、销售和食用三个环节中确保碘盐的实际浓度,单纯实施碘盐干预措施完全可以纠正病区居民的碘营养缺乏。

In order to study whether the newley stated iodine concentration of iodized salt by central goverment can correct iodine deficiency in IDD areas, under the premise of ensueing iodized salt quality, we take iodized salt intervention purely in Zhengzhou city where this intervention have been never used before.The result sliowed :after two years iodized salt applied, iodine nutrition level of school children improved markedly ,TGR (by ultrasound) reduced from 8.92% to 1.49% ; median of urinary iodine for these children increased form 76.98 ug/1 to 285.20 ug/1, urinary iodine level of pregnant women reached 303.1 ug/1. Qualified rate of iodized salt is steadily over 90 % in three links of manufactory, retail shop and household. Three indicators above mentioned have all attained national criterion for IDD elimination. It is proved that the iodine concentration of the iodized salt is scientific and practicable. If we ensure qualified iodized salt, IDD can be corrected solely by intervention means of iodized salt.