Diseases » Pervasive developmental disorders » Incidence

Incidence Statistics for Types of Pervasive developmental disorders

The information below shows a list of types of Pervasive developmental disorders, with information as to the annual incidence of each of these types of Pervasive developmental disorders. Estimates of the people affected each year are calculated based on the available statistics.

Incidence Statistics for Types of Pervasive developmental disorders

Disease	Incidence Estimate	US people estimate	Statistic Used for Calculation
Autism	approx 1 in 90,666 or 0.00% or 3,000 people in USA	3,000	3,000 new cases in the USA 2001 (BBC News, 2002)
Asperger syndrome	N/A	N/A	No information
childhood disintegrative disorder	N/A	N/A	No information
Rett's syndrome	approx 1 in 10,000 or 0.01% or 27,200 people in USA	27,199	1 in 10,000-15,000 live female births
pervasive developmental disorder not otherwise specified (PDDNOS)	N/A	N/A	No information

Types of Pervasive developmental disorders

For more information about types of Pervasive developmental disorders, refer to our section on types of Pervasive developmental disorders.

About incidence:

The medical term 'incidence' of Pervasive developmental disorders usually refers to the annual diagnosis rate of new cases of Pervasive developmental disorders. Prevalence is a different medical disease measure that refers to the estimated population of people who are managing Pervasive developmental disorders at any given time (e.g. prevalence includes people who have had a medical condition for a long time). For more information on prevalence and incidence statistics, see about prevalence and incidence statistics.

» Next page: Causes of Pervasive developmental disorders

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Incidence Statistics for Types of Pervasive developmental disorders