Rett's Disorder Statistics

(Also Known As: Retts Disorder Statistics, Rett's Statistics, Retts Statistics, Autism Statistics, Pervasive Development Disorder Statistics, Mental Retardation Statistics, Neurological Disorder Statistics)

(Reviewed by: Paul Peterson, Licensed Therapist)

Prevalence of Rett’s Disorder

  • RS is less common than other PDDs.
  • RS prevalence range between 1:10,000 births and 1:15,000 births. As of 2002, little is known about its prevalence across different racial and ethnic groups.
  • 50%–80% of children with Rett’s disorder will eventually develop epilepsy.
  • Males with pathogenic MECP2 mutations usually die within the first 2 years from severe encephalopathy, unless they have an extra X chromosome (often described as Klinefelter syndrome), or have somatic mosaicism.
  • Females can live up to 40 years or more. 14
  • RS prevalence occurs at 6-7 cases of Rett’s disorder per 100,000 girls15

Could You Have Rett's Disorder?

Rett's Disorder Topics

Related Conditions

Asperger's Syndrome – autism, delayed development in motor, communication and social skills, cognitive impairment, clumsiness
Autism – brain development disorder, Asperger’s disorder, impaired social interaction, restricted and repetitive behavior
Childhood Disintegrative Disorder - late onset of delayed development, impaired social, motor and communication skills
Pervasive Developmental Disorder NOS - delayed development in social, communication and motor skills