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Patient-reported outcomes in bariatric surgery: a systematic review of standards of reporting

Authors

  • K. D. Coulman,

    Corresponding author
    1. Department of Bariatric and Upper GI Surgery, Musgrove Park Hospital, Taunton and Somerset NHS Foundation Trust, Taunton, Somerset, UK
    • Centre for Surgical Research, School of Social and Community Medicine, University of Bristol, Bristol, UK
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  • T. Abdelrahman,

    1. Centre for Surgical Research, School of Social and Community Medicine, University of Bristol, Bristol, UK
    2. Department of Bariatric and Upper GI Surgery, Musgrove Park Hospital, Taunton and Somerset NHS Foundation Trust, Taunton, Somerset, UK
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  • A. Owen-Smith,

    1. Centre for Surgical Research, School of Social and Community Medicine, University of Bristol, Bristol, UK
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  • R. C. Andrews,

    1. School of Clinical Sciences, University of Bristol, Bristol, UK
    2. Department of Diabetes and Endocrinology, Musgrove Park Hospital, Taunton and Somerset NHS Foundation Trust, Taunton, Somerset, UK
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  • R. Welbourn,

    1. Department of Bariatric and Upper GI Surgery, Musgrove Park Hospital, Taunton and Somerset NHS Foundation Trust, Taunton, Somerset, UK
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  • J. M. Blazeby

    1. Centre for Surgical Research, School of Social and Community Medicine, University of Bristol, Bristol, UK
    2. Division of Surgery, Head and Neck, Bristol Royal Infirmary, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
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Address for correspondence: KD Coulman, School of Social and Community Medicine, University of Bristol, Canynge Hall, 39 Whatley Road, Bristol BS8 2PS, UK.

E-mail: karen.coulman@bristol.ac.uk

Summary

Bariatric surgery is increasingly being used to treat severe obesity, but little is known about its impact on patient-reported outcomes (PROs). For PRO data to influence practice, well-designed and reported studies are required. A systematic review identified prospective bariatric surgery studies that used validated PRO measures. Risk of bias in randomized controlled trials (RCTs) was assessed, and papers were examined for reporting of (i) who completed PRO measures; (ii) missing PRO data and (iii) clinical interpretation of PRO data. Studies meeting all criteria were classified as robust. Eighty-six studies were identified. Of the eight RCTs, risk of bias was high in one and unclear in seven. Sixty-eight different PRO measures were identified, with the Short Form (SF)-36 questionnaire most commonly used. Forty-one (48%) studies explicitly stated measures were completed by patients, 63 (73%) documented missing PRO data and 50 (58%) interpreted PRO data clinically. Twenty-six (30%) met all criteria. Although many bariatric surgery studies assess PROs, study design and reporting is often poor, limiting data interpretation and synthesis. Well-designed studies that include agreed PRO measures are needed with reporting to include integration with clinical outcomes to inform practice.

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