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目的了解和比较辽宁省碘缺乏病轻病区不同时期出生儿童智力水平。方法在3个县(市)4个乡6所学校,以病区未防治时期、供应碘盐初期、全民食盐加碘后出生7～14岁儿童为调查对象,用中国联合型瑞文测验图册(CRT-C)和第二版农村儿童智商常模(CRT-RC2)测验判定儿童智商(IQ)。结果碘缺乏病轻病区未防治时期、供应碘盐初期、全民食盐加碘后出生儿童智商分别为94.7±14.6、99.2±14.7、104.9±15.2,全民食盐加碘后儿童智商明显高于未防治时期儿童和供应碘盐初期儿童(P<0.01);IQ≤69者分别占5.6%、3%、2.4%,全民食盐加碘后智力落后儿童比例明显低于未防治时期儿童(P<0.005)。结论全民食盐加碘后碘缺乏病轻病区出生儿童智力水平有明显提高。
Objective To understand and compare the intelligence level of children born at different stages in Liaoning province with iodine deficiency deficiency and mild disease. Methods Six schools in 4 townships of 3 counties (cities) were investigated in the period of non-control of ward, iodized salt supply, Children’s IQ (IQ) was assessed using the CRT-C and the CRT-RC2 Second Edition. Results Iodine deficiency disease was not prevention of light ward period, the early supply of iodized salt, children’s salt iodized after the birth of children were 94.7 ± 14.6,99.2 ± 14.7,104.9 ± 15.2, children’s iodine iodine after childbirth was significantly higher than the control (P <0.01). IQ≤69 were 5.6%, 3% and 2.4% respectively. The proportion of children with mental retardation after iodine salt was significantly lower than that of children without control (P <0.005) . Conclusion After iodized salt is added to the whole country, the intelligence level of children born in mild ward with iodine deficiency disorders has obviously increased.