developmental retardation

Survey On Physical Function Developmental Level Of Students With Mental Retardation In beijing.

北京市智力落后学生身体机能发育水平的调查研究.

Exclusion criteria: nervous system organic diseases, pervasive developmental disorder ( PDD), mental retardation, epilepsy, psychotic disorder, acoustical and visual abnormalities, etc.

排除标准：患神经系统器质性疾病、广泛性发育障碍、精神发育迟滞、癫痫、精神病性障碍、听觉异常和视觉异常等疾病者。

Ten factors including sex, age, oral-motor function problem, developmental delay, history of language development delay, history of middle ear affection, lingua frenata, mental retardation, the therapy frequency and times, were analyzed.

列出10个分析因素，即性别、年龄、口腔运动功能问题、发育迟缓、语言发育迟缓史、中耳炎史、舌系带问题、智能迟缓、治疗频度和治疗次数。