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目的研究高碘地区居民停止食用碘盐对甲状腺肿的影响。方法随机抽取2个高碘乡8～10岁儿童用B超法诊断地方性甲状腺肿,同时检测居民的食用碘盐情况。结果停供碘盐前儿童甲状腺肿大率为10.57%,停供碘盐后1年时儿童甲状腺肿大率为5.36%,差异有统计学意义(χ2=4.84,P<0.05)。停供碘盐前与停供碘盐后1年时,碘盐覆盖率差异有统计学意义(χ2=104.53,P<0.01)。结论该县属水源性高碘地区,居民应食用无碘盐。
Objective To study the effect of iodine salt on goiter in high iodine area residents. Methods Two high iodine township children aged 8 ~ 10 years were selected randomly to diagnose endemic goiter with B-ultrasonography, and the iodized salt of residents was also tested. Results The rate of thyroid goiter before stopping iodized salt in children was 10.57%. The rate of goiter in children one year after stopping iodized salt was 5.36%. The difference was statistically significant (χ2 = 4.84, P <0.05). One year after stopping the supply of iodized salt and iodized salt, there was a significant difference in the coverage of iodized salt (χ2 = 104.53, P <0.01). Conclusion The county is a water-rich iodine region, residents should eat iodine-free salt.