【摘要】 本文测定了碘缺乏区7一14岁学龄儿童低智商组人群尿、发样中的F~-，ScN~-，Zn，Cu，Fe,Ca，Mg,Se及Mn指标水平，经主成分分析，按最大主成分值归类，以同病区学龄儿童高智商组人群为对照，研究碘缺乏区影响学龄儿童智商水平的非碘元素的种类和强度，为进一步完善以补碘为主的防治措施提供科学依据．更多还原

【Abstract】 This paper detected F~-，ScN~-，Zn，Cu，Fe，Ca，Mg，Se，Mn levels from urine and hair samples of school children with low IQ（Intelligence quotient）level aged 7-14 old in iodine deficient areas and dealt with the kind and intensity of non-iodine elements effecting on the IQ level of school chileren by means of principle component analysis，samples being lassified accor ding to their maximum principle component value and then compared with high IQ group in same district,to provide scientific evidence for completing further the measures of prevention and treat-ment headed by supplementing iodine．更多还原