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The most common reason parents reported as the cause of lost ASD diagnosis was new information about the child (73.5%), such as a replacement diagnosis. Other reasons included a diagnosis given so the child could receive ASD treatment (24.2%), ASD treatment success or maturation (21%), and parents disagreeing with the initial diagnosis (1.9%).
[17] [18] The second pattern, childhood disintegrative disorder (a diagnosis now included under ASD in the DSM, but not the ICD), is characterized by regression after normal development in the first 3 to 4, or even up to 9 years of life. [19] After the regression, the child follows the standard pattern of autistic neurological development.
Research-determined cut-offs identify the potential diagnosis of autism spectrum disorder, allowing a standardized assessment of autistic symptoms. The Autism Diagnostic Interview-Revised (ADI-R), a companion instrument, is a structured interview conducted with the parents of the referred individual to cover the subject's full developmental ...
Animal-assisted therapy, where an animal such as a dog or a horse becomes a basic part of a person's treatment, was a controversial treatment for some symptoms. A 2007 meta-analysis found that animal-assisted therapy was associated with "a moderate improvement in autism spectrum symptoms". [ 92 ]
Autism spectrum disorder [a] (ASD), or simply autism, is a neurodevelopmental disorder "characterized by persistent deficits in social communication and social interaction across multiple contexts" and "restricted, repetitive patterns of behavior, interests, or activities". [11]
These symptoms first appear in early childhood and persist throughout life. It was last recognized as a diagnosis in the DSM-IV and ICD-10, and has been superseded by autism spectrum disorder in the DSM-5 (2013) and ICD-11 (2022). Globally, classic autism was estimated to affect 24.8 million people as of 2015. [5]
Autism spectrum disorder (ASD) is referred to as syndromic when it is one of the many characteristics associated with a broader medical condition, generally a syndrome. Syndromic autism represents about 25% of the total ASD cases. [4] [5] In most [quantify] cases, its etiology is known. [2] [4]
The diagnosis manual DSM-IV did not allow the co-diagnosis of ASD and attention deficit hyperactivity disorder (ADHD). However, following years of clinical research, the DSM-5 released in 2013 removed this prohibition of co-morbidity. Thus, individuals with autism spectrum disorder may also have a diagnosis of ADHD, with the modifiers of a ...