摘要
目的了解高碘地区不同碘摄入水平的儿童智商水平和精神运动功能,探讨高碘对儿童智力发育和精神运动功能的影响。方法根据高碘地区不同碘摄入水平选择调查点,对调查点的7-14岁学生进行智力测验和精神运动功能测试,并设立对照。结果共对3 059名7-14岁学生进行了智力测验,其中男生 1 597名,女生1 462名。学生智商在性别上差异无统计学意义(P>0．05),在年龄组上差异有统计学意义(P< 0．05);高碘组学生智商明显高于对照组(P<0．01),高碘组智力低下发生率明显低于对照组(P<0．01)。对500 名学生进行精神运动功能测试,高碘组的学生精神运动功能好于对照组(P<0．05)。智力和精神运动功能呈正相关,r=0,332．P<0．05;不同智商水平的学生精神运动功能异常率差异有统计学意义,智力低下者精神运动功能异常率明显高于智商正常者(P<0．05)。结论未发现高碘对儿童智力发育损害的影响,但是不同碘水平儿童的精神运动功能测试结果有差异。精神运动功能和智力水平相关,精神运动功能测试更能反映出儿童神经系统损伤的细微差别,智力测验和精神运动功能测试联合可以筛查和预测智力落后儿童。
Objective To explore the effect of different iodine intakes on child intelligence growth and psychomotor function. Methods According to the water iodine results of high iodine area, the surveillance spots were selected. Controls were set up too. Intelligence examination and psychomotor test were carried on in each group of students aging 7 - 14 years old. Results In 3 059 students enrolled, there were 1 597 boys and 1 462 girls. The result revealed that the student intelligence quotient（IQ） did not have an obvious difference in different genders （P 〉 0.05）,but had a statistical significance in different age groups （P 〈 0.05）. The student IQ in the excessive iodine group was obviously higher than that in the control group with statistical significance （P 〈 0.01 ）. The rate of low intelligence was obviously lower in excessive iodine group than that in the control group （P 〈 0.01 ）. There were 500 students who underwent psychomotor test. The result showed that the student psychomotor function in excessive iodine group was better than that in control group （P 〈 0,05）. IQ and psychomotor function presented a positive correlation （r = 0.332,P 〈 0.05）. In students with different IQ level, psychomotor function had significant differences,with more abnormality in those who had lower intelligence than those who had normal IQ （P 〈 0.05）. Conclusions No obvious effect of excessive iodine is found on mental development of school children. The result of psychomotor test in children with the different water iodine level has a significant difference. The psychomotor function and the intelligence level are positively correlated. The JPB psychomotor test is more suitable to detect the fine distinction of energetic movement due to injury of nervous system. A combination of intelligence examination and JPB psychomotor test can be used in screening or predicting the backward intelligence of children.
出处
《中国地方病学杂志》
CAS
CSCD
北大核心
2006年第2期185-188,共4页
Chinese Jouranl of Endemiology
关键词
高碘
智力
精神运动功能
Excessive iodine
Intelligence
Psychomotor
