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我们对洛阳郊县栾川(地甲病病区)和郊区工农乡(非病区)儿童作了对比调查,结果表明豫西碘缺乏地区存在以轻度智力障碍为主、体格发育等较差的儿童,占调查人数的14.52%。这部份智力
We conducted a survey of children in Luanchuan (A and B districts) in Luoyang suburban counties and rural workers, peasants and rural areas (non-ward) in suburbs. The results showed that there were mainly mild mental retardation and poor physical development Of children, accounting for 14.52% of the surveyed population. This part of intelligence