et al - Georgetown University
et al - Georgetown University
et al - Georgetown University
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Epidemiology of autism<br />
Pervasive development<strong>al</strong> disorders (PPD)<br />
– R<strong>et</strong>t’s disorder<br />
– childhood disintegrative disorder<br />
– autistic spectrum disorder (ASD)<br />
» Asperger’s disorder (ASP)<br />
» autism (usu<strong>al</strong>ly no period of “unequivoc<strong>al</strong>ly norm<strong>al</strong><br />
development”)<br />
» PPD not otherwise specified (PPD-NOS)<br />
childhood disintegrative disorder (CDD)<br />
atypic<strong>al</strong> autism (later age of ons<strong>et</strong>, atypic<strong>al</strong> or<br />
subthreshold symptom)
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