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Article History

Received: 6 August 2019

Accepted: 23 October 2019

First Online: 6 November 2019

Ethics approval and consent to participate

: The authors assert that all procedures contributing to this work comply with the ethical standards of the relevant national and institutional committees on human experimentation and with the Helsinki Declaration of 1975, as revised in 2008. Ethical approval was granted for the NCISH project by the South Manchester Medical Research Ethics Committee, the North West Research Ethics Committee, the National Information Governance Board for Health and Social Care, the Patient Information Advisory Group, and approval under Section 251 of the Mental Health and Social Care Act.

: Not applicable.

: L.A. chairs the National Suicide Prevention Strategy Advisory Group at the Department of Health (of which N.K. is also a member) and is a non-executive Director for the Care Quality Commission. N. K .chaired the NICE self-harm guidelines, is current chair of the NICE Depression Guideline Committee, and was a topic expert for the NICE suicide prevention guidelines. Views expressed in the paper are those of the authors and not those of NICE or Department of Health. DLL, LQ, JG, PT and RTW declare no competing interests.