Prevalence of psychiatric disorders in children and adolescents with and without intellectual disability

There have been very few population-based studies of the prevalence of psychiatric disorders among children and adolescents with and without intellectual disability (ID).

Secondary analysis of the 1999 Office for National Statistics survey of the Mental Health of Children and Adolescents in Great Britain was performed. This survey collected information on a multistage, stratified, random sample of 10 438 children between 5 and 15 years of age across 475 postcode sectors in England, Scotland and Wales.