King's College London

Funding Information: Competing interests MH, RoR and SW are senior NIHR Investigators. This paper represents independent research part-funded by the NIHR Maudsley Biomedical Research Centre Trust and King’s College London (MH, SW, SS). The views expressed are those of the authors and not necessarily those of the NHS, the NIHR, or the Department of Health and Social Care. RoR reports grants from DHSC/UKRI/ ESRC COVID-19 Rapid Response Call, grants from Rosetrees Trust, grants from King’s Together rapid response call, grants from University College London (UCL) (Wellcome Trust) rapid response call, during the conduct of the study; and grants from NIHR outside the submitted work. MH reports grants from DHSC/UKRI/ESRC COVID-19 Rapid Response Call, grants from Rosetrees Trust, grants from King’s Together rapid response call, grants from UCL Partners rapid response call, during the conduct of the study; grants from Innovative Medicines Initiative and EFPIA, RADAR-CNS consortium, grants from MRC, grants from NIHR, outside the submitted work. SS reports grants from UKRI/ESRC/DHSC, grants from UCL, grants from UKRI/ MRC/DHSC, grants from Rosetrees Trust, grants from King’s Together Fund, during the conduct of the study. NG reports a potential COI with NHSEI, during the conduct of the study; and is the managing director of March on Stress Ltd which has provided training for a number of NHS organisations, although it is not clear if the company has delivered training to any of the participating trusts or not as NG is not directly involved in commissioning specific pieces of work. Funding Information: Funding Funding for NHS CHECK has been received from the following sources: Medical Research Council (MR/V034405/1); UCL/Wellcome (ISSF3/H17RCO/C3); Rosetrees (M952); Economic and Social Research Council (ES/V009931/1); as well as seed funding from National Institute for Health Research Maudsley Biomedical Research Centre, King’s College London, National Institute for Health Research Health Protection Research Unit in Emergency Preparedness and Response at King’s College London. This paper is independent research supported by the National Institute for Health Research ARC North Thames. The views expressed in this publication are those of the author(s) and not necessarily those of the National Institute for Health Research or the Department of Health and Social Care. Funding Information: Funding for NHS CHECK has been received from the following sources: Medical Research Council (MR/V034405/1); UCL/Wellcome (ISSF3/H17RCO/C3); Rosetrees (M952); Economic and Social Research Council (ES/V009931/1); as well as seed funding from National Institute for Health Research Maudsley Biomedical Research Centre, King's College London, National Institute for Health Research Health Protection Research Unit in Emergency Preparedness and Response at King's College London. This paper is independent research supported by the National Institute for Health Research ARC North Thames. The views expressed in this publication are those of the author(s) and not necessarily those of the National Institute for Health Research or the Department of Health and Social Care. Publisher Copyright: © Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY. Published by BMJ. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.