You asked

Please could you either provide me with the following information or point me in the right direction so I can locate it myself.

  1. The most up to date statistics on mental health in young people in the UK (more specifically in KS3 - 11 to 13 year olds).
  2. Information on research and outcomes in mental health in young people.

We said

Thank you for your recent request.

All data held by us on Mental Health of Young People is available on our website, with associated data available on the UK Data service: https://www.ukdataservice.ac.uk

Specifically, you may be interested in the following statistics:

The mental health of children and adolescents in Great Britain (1999): http://webarchive.nationalarchives.gov.uk/20160105160709/http://www.ons.gov.uk/ons/rel/psychiatric-morbidity/the-mental-health-of-children-and-adolescents-in-great-britain/1999-survey/mental-health-of-children-and-adolescents-in-great-britain.pdf

The mental health of young people looked after by local authorities in England (2002): http://webarchive.nationalarchives.gov.uk/20160105160709/http://www.ons.gov.uk/ons/rel/psychiatric-morbidity/mental-health-of-young-people-looked-after-by-local-authorities/2002-survey/mental-health-of-young-people-looked-after-by-local-authorities-in-england.pdf

Mental health of children and young people in Great Britain, 2004: http://content.digital.nhs.uk/catalogue/PUB06116

Three years on: Survey of the development and emotional well-being of children and young people: http://webarchive.nationalarchives.gov.uk/20160105160709/http://www.ons.gov.uk/ons/about-ons/business-transparency/freedom-of-information/what-can-i-request/previous-foi-requests/people-and-places/mental-health-of-children-from-separated-parents/follow-up-report-on-mental-health-of-children.pdf

Measuring National Well-being: Insights into children's mental health and well-being (2015): https://www.ons.gov.uk/peoplepopulationandcommunity/wellbeing/articles/measuringnationalwellbeing/2015-10-20

Children's mental ill-health by time spent on social networking sites, UK, 2013 to 2014: https://www.ons.gov.uk/peoplepopulationandcommunity/wellbeing/adhocs/006721childrensmentalillhealthbytimespentonsocialnetworkingsitesuk2013to2014

You may also be interested in statistics published by Public Health England, which are available via the PHE fingertips tool: https://fingertips.phe.org.uk/profile-group/mental-health/profile/cypmh

NHS Digital will be able to to advise on your specific question around the most up to date statistics on mental health in young people in the UK (KS3 - 11 to 13 year olds). They can be contacted using the following email address; enquiries@nhsdigital.nhs.uk