About the Authors

Elizabeth Gargon

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

e.gargon@liverpool.ac.uk

Affiliation Department of Biostatistics, University of Liverpool, Liverpool, United Kingdom

Sarah L. Gorst

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

Affiliation Department of Biostatistics, University of Liverpool, Liverpool, United Kingdom

Paula R. Williamson

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

Affiliation Department of Biostatistics, University of Liverpool, Liverpool, United Kingdom

Competing Interests

EG and PW are members of the COMET Management Group. All other authors had no competing interests. This does not alter our adherence to PLOS ONE policies on sharing data and materials.