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随着独生子女在儿童中所占比例的增大,独生子女体格和智力发育状况已引起人们越来越广泛的关注。国外的研究表明,在身高、体重等体格发育方面,多子女家庭的儿童显著低于独生子女;智力测验成绩,独生子女明显优于非独生子女。国内对独生子女的体格发育及健康状况亦有少量研究,但结论不尽一致。我们于1986年3～5月,采用配对分析方法,对武汉市125对独生和非独生子女的体格和智力发育状况进行了研究比较,并对二者之间差异的成因进行初步探讨。
As the proportion of only children in children increases, somatic and mental development of the only child has drawn more and more attention. Foreign studies have shown that height and weight and other physical development, children with multiple children families was significantly lower than only children; intelligence test results, the only child was significantly better than non-only child. There has also been a small amount of research on the physical development and health of the only children in the country, but the conclusions are not consistent. From March to May 1986, we used a pairwise analysis method to compare the physical and mental development of 125 singleton and non-singleton children in Wuhan, and discussed the causes of the differences between the two.