22 多數唐氏症（Down syndrome）患者，智能障礙程度為何？
(A)輕度
(B)中度
(C)重度
(D)極重度

Persons with moderate intellectual disability constitute
about 10% of individuals with ID. Children
and adolescents at this level of impairment are more
intellectually and adaptively impaired than someone
with mild intellectual disability, and usually they are
identified during the preschool years, when they show
delays in reaching early developmental milestones. By
the time they enter school, these children may communicate
through a combination of single words and
gestures, and show self-care and motor skills similar to
an average 2- to 3-year-old. Many persons with Down
syndrome function at the moderate level of impairment.
Because their social judgment and decision-making
abilities are limited, children and youth with moderate
ID often require supportive services to function on a
daily basis.

中度智能障礙約占智能障礙的10%，多在學前被發現。

中度智能障礙可以用簡單的字加上手勢溝通，自我照顧與動作能力約停留在兩、三歲，唐氏症者多為中度智能障礙。其因社會判斷與決策能力受限，在生活上需要他人提供支持與協助。