About the Authors

Jennifer S. Cox

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Validation, Writing – original draft, Writing – review & editing

‡ Joint first authors.

Affiliation National Institute for Health and Care Research Bristol Biomedical Research Centre Diet and Physical Activity Theme, University Hospitals Bristol NHS Foundation Trust and University of Bristol, Bristol, United Kingdom

Aidan J. Searle

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Writing – original draft, Writing – review & editing

‡ Joint first authors.

Affiliation National Institute for Health and Care Research Bristol Biomedical Research Centre Diet and Physical Activity Theme, University Hospitals Bristol NHS Foundation Trust and University of Bristol, Bristol, United Kingdom

Idoia Iturbe

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

Affiliation Department of Clinical and Health Psychology and Research Methodology, Faculty of Psychology, University of the Basque Country (UPV/EHU), Donostia-San Sebastian, Basque Country, Spain

Gail A. Thornton

Roles Conceptualization, Formal analysis, Funding acquisition, Writing – review & editing

Affiliation Public contributor, Bristol, UK,

Ingram Wright

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

Affiliation Bristol Royal Hospital for Children, University Hospitals Bristol NHS Foundation Trust, Bristol, United Kingdom

Claire Semple

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

Affiliation Bristol Royal Hospital for Children, University Hospitals Bristol NHS Foundation Trust, Bristol, United Kingdom

Ken Clare

Roles Validation, Writing – review & editing, Resources

Affiliation Public contributor, Liverpool, UK

Julian P. Hamilton-Shield

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

Affiliation National Institute for Health and Care Research Bristol Biomedical Research Centre Diet and Physical Activity Theme, University Hospitals Bristol NHS Foundation Trust and University of Bristol, Bristol, United Kingdom

Elanor C. Hinton

Roles Conceptualization, Data curation, Funding acquisition, Methodology, Project administration, Resources, Supervision, Validation, Writing – review & editing

elanor.hinton@bristol.ac.uk

Affiliation National Institute for Health and Care Research Bristol Biomedical Research Centre Diet and Physical Activity Theme, University Hospitals Bristol NHS Foundation Trust and University of Bristol, Bristol, United Kingdom

Competing Interests

I have read the journal’s policy and the authors of this manuscript have the following competing interests: Dr Hinton is employed by both the University of Bristol as a Senior Research Fellow (through which she completed this work) and also on a part-time basis with Oxford Medical Products as a Clinical Studies Manager. Please note the work reported in this paper was conducted fully independently from the industry role. All co-authors have no conflict of interest to declare.