What effect have NHS commissioners’ policies for body mass index had on access to knee replacement surgery in England?: An interrupted time series analysis from the National Joint Registry

• Joanna McLaughlin ,

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

  * E-mail: joanna.mclaughlin@bristol.ac.uk

  Affiliation Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Learning and Research Building, Level 1, Southmead Hospital, Bristol, United Kingdom

  https://orcid.org/0000-0001-9921-4698

  ⨯
• Ruth Kipping,

  Roles Supervision, Writing – review & editing

  Affiliation Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom

  ⨯
• Amanda Owen-Smith,

  Roles Supervision, Writing – review & editing

  Affiliation Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom

  ⨯
• Hugh McLeod,

  Roles Supervision, Writing – review & editing

  Affiliations Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom, National Institute for Health Research Applied Research Collaboration West (NIHR ARC West), University Hospitals Bristol NHS Foundation Trust, Bristol, United Kingdom

  ⨯
• Samuel Hawley,

  Roles Methodology, Writing – review & editing

  Affiliation Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Learning and Research Building, Level 1, Southmead Hospital, Bristol, United Kingdom

  ⨯
• J Mark Wilkinson,

  Roles Conceptualization, Methodology, Writing – review & editing

  Affiliation Department of Oncology and Metabolism, The Mellanby Centre for Musculoskeletal Research, University of Sheffield, Metabolic Bone Unit, Sorby Wing, Northern General Hospital, Sheffield, United Kingdom

  ⨯
• Andrew Judge

  Roles Conceptualization, Formal analysis, Funding acquisition, Methodology, Supervision, Writing – original draft, Writing – review & editing

  Affiliations Musculoskeletal Research Unit, Translational Health Sciences, Bristol Medical School, University of Bristol, Learning and Research Building, Level 1, Southmead Hospital, Bristol, United Kingdom, National Institute for Health Research Bristol Biomedical Research Centre, University Hospitals Bristol and Weston NHS Foundation Trust and University of Bristol, Bristol, United Kingdom, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences (NDORMS), University of Oxford, Oxford, Kingdom

  ⨯