Update information
Minor changes since publication
September 2024: References, data sources and links have been updated throughout. Structure measures were also removed where they replicated process measures.
June 2022: The definition of psychological treatments in statement 8 has been updated to link to the updated NICE guideline on depression in adults. Links and references have been updated throughout.
April 2014: NICE's guideline on needle and syringe programmes has been updated. References and links to this guideline have been updated throughout.