About the Authors

Charlotte Williamson

Roles Conceptualization, Formal analysis, Investigation, Methodology, Project administration, Validation, Visualization, Writing – original draft

charlotte.1.williamson@kcl.ac.uk

Affiliation King’s Centre for Military Health Research, King’s College London, London, United Kingdom

Bethany Croak

Roles Formal analysis, Investigation, Validation, Writing – review & editing

Affiliation King’s Centre for Military Health Research, King’s College London, London, United Kingdom

Amos Simms

Roles Writing – review & editing

Affiliations Academic Department of Military Mental Health, King’s College London, London, United Kingdom, British Army, London, United Kingdom

Nicola T. Fear

Roles Funding acquisition, Writing – review & editing

Affiliations King’s Centre for Military Health Research, King’s College London, London, United Kingdom, Academic Department of Military Mental Health, King’s College London, London, United Kingdom

Marie-Louise Sharp

Roles Methodology, Supervision, Writing – review & editing

‡ These authors contributed equally as joint last authors.

Affiliation King’s Centre for Military Health Research, King’s College London, London, United Kingdom

Sharon A. M. Stevelink

Roles Funding acquisition, Methodology, Supervision, Writing – review & editing

‡ These authors contributed equally as joint last authors.

Affiliations King’s Centre for Military Health Research, King’s College London, London, United Kingdom, Department of Psychological Medicine, King’s College London, London, United Kingdom

Competing Interests

CW is currently in receipt of a funded PhD studentship via Phase 4 of the King’s Centre for Military Health Research Health and Wellbeing Cohort Study funded by the Office for Veterans’ Affairs (OVA), Cabinet Office, UK Government. BC is currently in receipt of a funded PhD studentship from The Economic and Social Research Council (ESRC), UK Government. AS is a full-time member of the British Army seconded to King’s College London. NTF is partly funded by the United Kingdom’s Ministry of Defence (MOD). MLS is fully funded by a grant from the OVA. SAMS is supported by the National Institute for Health and Care Research (NIHR) Maudsley Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and the National Institute for Health and Care Research, NIHR Advanced Fellowship, Dr Sharon Stevelink, NIHR300592. The views expressed in this publication are those of the authors and not necessarily those of the OVA, the ESRC, the British Army, the MOD, the NHS, or the NIHR. All authors have approved the manuscript and agree with its submission to PLOS ONE. Any conflicts of interest have been outlined in the manuscript. This does not alter our adherence to PLOS ONE policies on sharing data and materials.