碘干预与儿童智力发展现状

Iodine intervention and the intelligence quotient development in children

目的 了解贵州实行碘干预后,病区儿童智商水平。方法 选择历史上重,轻病区县各一个,应用中国联合型瑞文测验(GRT-C_2),对8～13岁儿童智商进行调查。结果 实施碘干预后,重病区儿童平均智商水平仍低于轻病区,智力落后儿童的比例高达30％。结论 在历史上的严重缺碘地区,应加强对孕妇及育龄妇女的额外补碘。

Objective To estimate the IQ status in children after iodine intervention in Guizhou, China. Methods To choose both severe and mild areas, study IQ in school children aged 8 to 13 by Combined Raven' s Test of China(CRT-Cz) . Results After iodine intervention, iodine nutrition status in population has been increased with 386. 4 μg/L and 473. 9 μg/L median urinary iodine in both areas, however the average IQ in school children of severe area was lower than the children in mnd areas with 30% children IQ < 69. Conclusions In severe area, the iodine supply should be strengthened in women of pregnant or birth age.