Source: Report No. 63 "Persons with Disabilities and Chronic Illnesses" published by the Census and Statistics Department of Hong Kong in December 2021

According to the American Association of Intellectual and Developmental Disabilities (AAIDD), intellectual disability is a disorder that exhibits significant limitations in both "intellectual function" and "adaptive behavior." Limitations in adaptive behavior are manifested in three aspects: "conceptual", "social" and "applicational" skills. This disorder occurs during the developmental period in which the operational definition is before age of 22.

Down syndrome is a hereditary disease discovered in 1866 by. Dr. John Langdon Down. Patients with down syndrome demonstrate certain degree of learning disabilities or certain physical characteristics and health problems, such as congenital heart disease of varying severity. Some children with Down syndrome can live a normal life with special care and education.

Autism Spectrum Disorder (ASD) is a developmental disorder caused by abnormal development of brain function, which mainly affects communication and connection with people. Therefore, people with autism spectrum disorder will encounter many obstacles in daily interpersonal relationships and social communication, and will also have paranoid behavior patterns. Behavioral manifestations of each person with autism spectrum disorder are different. The following are common symptoms of ASD.

Pre-school Rehabilitation Services Early Education and Training Centre (EETC) Integrated Programme in Kindergarten-cum-Child Care Centre (IP) On-site Pre-school Rehabilitation Services (OPRS) Special Child Care Centre (SCCC) Residential Special Child Care Centre (RSCCC) Training Subsidy for Children on the Waiting List of Subvented Pre-school Rehabilitation Services (TSP) Occasional Child Care Service for Disabled Children (OCC for DC) District-based Speech Therapy Service (DSTT)...

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