About the Authors

Jocelyn Anstey Watkins

Contributed equally to this work with: Jocelyn Anstey Watkins, Jonathan D. C. Ross, Frances Griffiths

Roles Formal analysis, Investigation, Project administration, Visualization, Writing – original draft, Writing – review & editing

j.watkins.1@warwick.ac.uk

Affiliation Warwick Medical School, University of Warwick, Coventry, England, United Kingdom

Jonathan D. C. Ross

Contributed equally to this work with: Jocelyn Anstey Watkins, Jonathan D. C. Ross, Frances Griffiths

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

Affiliation University Hospitals Birmingham NHS Foundation Trust, Birmingham, England, United Kingdom

Sukhwinder Thandi

Roles Project administration, Resources, Writing – review & editing

‡ These authors also contributed equally to this work.

Affiliation Nottingham Clinical Trials Unit, University of Nottingham, Nottingham, England, United Kingdom

Clare Brittain

Roles Project administration, Resources, Supervision, Writing – review & editing

‡ These authors also contributed equally to this work.

Affiliation Nottingham Clinical Trials Unit, University of Nottingham, Nottingham, England, United Kingdom

Joe Kai

Roles Conceptualization, Funding acquisition, Supervision, Visualization, Writing – review & editing

‡ These authors also contributed equally to this work.

Affiliation Division of Primary Care, University of Nottingham, Nottingham, England, United Kingdom

Frances Griffiths

Contributed equally to this work with: Jocelyn Anstey Watkins, Jonathan D. C. Ross, Frances Griffiths

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

Affiliations Warwick Medical School, University of Warwick, Coventry, England, United Kingdom, Centre for Health Policy, University of the Witwatersrand, Johannesburg, South Africa

Competing Interests

The authors have read the journal's policy and the following author has the following competing interests: Professor Jonathan D. C. Ross reports personal fees from GSK Pharma, Hologic Diagnostics, Mycovia and Janssen Pharma as well as ownership of shares in GSK Pharma and AstraZeneca Pharma; and is author of the UK and European Guidelines on Pelvic Inflammatory Disease; is a Member of the European Sexually Transmitted Infections Guidelines Editorial Board; is a Member of the National Institute for Health Research Funding Committee (Health Technology Assessment programme); was previously a Member of the National Institute for Health Research HTA Primary Care, Community and Preventative Interventions Panel (2013-2016). He is an NIHR Journals Editor and associate editor of Sexually Transmitted Infections journal. He is an officer of the British Association for Sexual Health and HIV (vice-president), and the International Union against Sexually Transmitted Infections (treasurer), and a charity trustee of the Sexually Transmitted Infections Research Foundation. The authors confirm that this does not alter our adherence to all PLOS ONE policies on sharing data and materials. There are no patents, products in development or marketed products associated with this research to declare. All other authors have declared that no competing interests exist.