§ Mrs. Brooke
To ask the Secretary of State for Health what data are available to his Department relating to the numbers of(a) primary school age children and (b) secondary school age children assessed as needing support from child and adolescent mental health services in each year since 2001; and what proportion of these children are in mainstream education. 
§ Dr. Ladyman
The information requested is not collected centrally. A survey by the Office for National Statistics, "Mental Health of Children and Adolescents in Great Britain, ONS 1999", found that among five to 10-year-olds, 10 per cent. of boys and 6 per cent. of girls had a mental disorder. In the 11 to 15-year-old age group, the proportion of children with any type of mental disorder was 13 per cent. for boys and 10 per cent. for girls. Mental disorders can range from clinically significant conduct disorders; emotional disorders, such as anxiety and depression, to hyperactivity.