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A community survey establishing the prevalence rate of autistic disorder in adults with learning disability

Brian Oliver Centre, Brooklands Hospital, Coleshill Road, Marston Green, Birmingham B 37 7HL

Meera Roy, Consultant in Psychiatry of Learning Disability

Birmingham Specialist Community Health NHS Trust

Ashraf Nasr, Specialist Registrar in General Adult Psychiatry

West Midlands Deanery

Patrick Chance, Staff Grade Psychiatrist

Ladywood Home Treatment Team, Birmingham

Mark Hand, Autism Development Officer

Sandwell, West Midlands

Tom Mlele, Consultant in Psychiatry of Learning Disability

Black Country Mental Health Trust, West Midlands

Ashok Roy, Consultant in Psychiatry of Learning Disability

Birmingham Specialist Community Health NHS Trust

AIMS AND METHOD

Most studies into autistic disorder have concentrated on children. This study aims to establish a prevalence rate of autistic disorders in an adult population with learning disabilities. Adults accessing learning disability services were diagnosed as having an autistic disorder by a two-stage process. The first stage was screening using the Pervasive Developmental Disorder — Mental Retardation Scale and then those identified by screening were diagnosed clinically.

RESULTS

An overall population rate of 7.7/10 000 for autistic disorder was obtained, which is a prevalence rate of 30% in those with learning disability. The prevalence rate was higher in intensive service settings.

CLINICAL IMPLICATIONS

Specific funding and interventions need to be targeted for the treatment of autistic disorders.

This article has been cited by other articles:

				R. Olasin Age at Regression in Children With Autism With and Without Down Syndrome AAP Grand Rounds, September 1, 2008; 20(3): 33 - 34. [Full Text] [PDF]

				C. N. Morgan, M. Roy, and P. Chance Psychiatric comorbidity and medication use in autism: a community survey Psychiatr. Bull., October 1, 2003; 27(10): 378 - 381. [Abstract] [Full Text] [PDF]