About the Authors

Patrick C. Stone

Roles Conceptualization, Formal analysis, Methodology, Project administration, Supervision, Writing – original draft, Writing – review & editing

p.stone@ucl.ac.uk

Affiliation Division of Psychiatry, Marie Curie Palliative Care Research Department, University College London (UCL), London, United Kingdom

Christina Chu

Roles Formal analysis, Methodology, Writing – original draft, Writing – review & editing

Affiliation Division of Psychiatry, Marie Curie Palliative Care Research Department, University College London (UCL), London, United Kingdom

Chris Todd

Roles Conceptualization, Methodology, Project administration, Supervision, Writing – review & editing

Affiliations Faculty of Biology, School of Health Sciences, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom, Manchester University NHS Foundation Trust, Manchester, United Kingdom

Jane Griffiths

Roles Conceptualization, Methodology, Project administration, Writing – review & editing

Affiliation Faculty of Biology, School of Health Sciences, Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester, United Kingdom

Anastasia Kalpakidou

Roles Data curation, Project administration, Supervision, Writing – review & editing

Affiliation Division of Psychiatry, Marie Curie Palliative Care Research Department, University College London (UCL), London, United Kingdom

Vaughan Keeley

Roles Conceptualization, Methodology, Supervision, Writing – review & editing

Affiliation Palliative Medicine Department, University Hospitals of Derby and Burton NHS Foundation Trust, Derby, United Kingdom

Rumana Z. Omar

Roles Conceptualization, Formal analysis, Methodology, Supervision, Validation, Writing – review & editing

Affiliation Department of Statistical Science, University College London (UCL), London, United Kingdom

Victoria Vickerstaff

Roles Conceptualization, Formal analysis, Methodology, Writing – review & editing

Affiliation Division of Psychiatry, Marie Curie Palliative Care Research Department, University College London (UCL), London, United Kingdom

Competing Interests

Competing interests - Prof Stone, Prof Todd, Prof Omar, Prof Keeley and Dr Griffiths received grants from National Institute for Health Research, during the conduct of the study; No authors declare any financial relationships with any organisations that might have an interest in the submitted work in the previous three years, and no other relationships or activities that could appear to have influenced the submitted work. This does not alter our adherence to PLOS ONE policies on sharing data and materials.