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本文对93例智力低下儿童与305例智力正常儿童的体格发育及骨龄进行了对照分析,结果发现,约有半数智力低下儿童体格发育低下。骨龄延迟也多于对照组。智力低下越严重,体格发育低下越多。体格发育低下在环境及经济条件差的地区明显高于条件较好的地区,男性较女性多。另外,年龄越小,骨龄及体格发育低下越多,达青春期,部分可减轻或恢复正常。结合流行病学调查及临床x线检查,认为营养及环境可能是影响智力与体格发育的重要因素。
In this paper, 93 children with mental retardation and 305 normal children with mental development and bone age were analyzed comparatively and found that about half of the mental retardation of children with poor physical development. Bone age also delayed more than the control group. The more serious mental retardation, the more low physical development. Low physical development in areas with poor environmental and economic conditions was significantly higher than in better-performing areas, with more men than women. In addition, the younger, lower bone age and physical development, up to adolescence, some can be reduced or returned to normal. Combined with epidemiological investigation and clinical x-ray examination, nutrition and environment may be considered as important factors affecting mental and physical development.