群“智力残疾”，一个全面概括先天性智商低下的术语，在男孩中常见比例多达30% ~ 50%，癫痫症也是。

"Intellectual disability", a catch-all term for congenital low IQ, is 30-50% more common in boys, as is epilepsy.

youdao

智商、居住环境、开始会走路的年龄对智力低下儿童社会生活能力有重要影响，尤其是智商。

IQ, residential environment and age of starting walking were the main factors influencing child social living ability of MR, especially IQ.

youdao