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Intellectual Disability

Intellectual Disability

"Intellectual disability is a significant impairment of cognitive and adaptive functions,with age of onset before 18 years"

Intellectual disability is also known as Mental Retardation.

According to ICD-10- " Mental Retardation is a condition of arrested or incomplete Development of the mind which is especially characterized by impairment of skills manifested during the developmental period, contributing to the overall level of intelligence- cognitive, language,motor and social abilities"

Classification of Intellectual Disability

According to Intelligence Quotient level ( WHO 1968)
Mild ID - 50-55 to 70 IQ
Moderate ID- 35-40 to 50-55 IQ
Severe ID- 20-25 to 35-40 IQ
Profound ID- below 20-25 IQ

Causes of Intelligence Disability-

Chromosomal abnormalities,
syndromes,
Structural CNS,
complication of prematurity,
unique monogenic,etc.

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