Validity and Reliability of a French Version of Reflux Symptom Index

  • Jérôme R. Lechien
    Correspondence
    Address correspondence to and reprint requests to Jérôme R. Lechien, Laboratory of Anatomy and Cell Biology, Faculty of Medicine, UMONS Research Institute for Health Sciences and Technology, University of Mons (UMONS), Avenue du Champ de mars, 6, B7000 Mons, Belgium.
    Affiliations
    Laboratory of Anatomy and Cell Biology, Faculty of Medicine, UMONS Research Institute for Health Sciences and Technology, University of Mons (UMONS), Mons, Belgium

    Laboratory of Phonetics, Faculty of Psychology, Research Institute for Language Sciences and Technology, University of Mons (UMONS), Mons, Belgium

    Department of Otorhinolaryngology and Head and Neck Surgery, RHMS Baudour, EpiCURA Hospital, Baudour, Belgium
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  • Kathy Huet
    Affiliations
    Laboratory of Phonetics, Faculty of Psychology, Research Institute for Language Sciences and Technology, University of Mons (UMONS), Mons, Belgium
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  • Camille Finck
    Affiliations
    Department of Otorhinolaryngology and Head and Neck Surgery, CHU de Liège, Université de Liège, Liège, Belgium
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  • Mohamad Khalife
    Affiliations
    Department of Otorhinolaryngology and Head and Neck Surgery, RHMS Baudour, EpiCURA Hospital, Baudour, Belgium
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  • Anne-Françoise Fourneau
    Affiliations
    Department of Otorhinolaryngology and Head and Neck Surgery, RHMS Baudour, EpiCURA Hospital, Baudour, Belgium
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  • Véronique Delvaux
    Affiliations
    Laboratory of Phonetics, Faculty of Psychology, Research Institute for Language Sciences and Technology, University of Mons (UMONS), Mons, Belgium
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  • Myriam Piccaluga
    Affiliations
    Laboratory of Phonetics, Faculty of Psychology, Research Institute for Language Sciences and Technology, University of Mons (UMONS), Mons, Belgium
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  • Author Footnotes
    1 Contributed equally to this work and should be regarded as joint last authors.
    Bernard Harmegnies
    Footnotes
    1 Contributed equally to this work and should be regarded as joint last authors.
    Affiliations
    Laboratory of Phonetics, Faculty of Psychology, Research Institute for Language Sciences and Technology, University of Mons (UMONS), Mons, Belgium
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  • Author Footnotes
    1 Contributed equally to this work and should be regarded as joint last authors.
    Sven Saussez
    Footnotes
    1 Contributed equally to this work and should be regarded as joint last authors.
    Affiliations
    Laboratory of Anatomy and Cell Biology, Faculty of Medicine, UMONS Research Institute for Health Sciences and Technology, University of Mons (UMONS), Mons, Belgium

    Department of Otorhinolaryngology and Head and Neck Surgery, RHMS Baudour, EpiCURA Hospital, Baudour, Belgium
    Search for articles by this author
  • Author Footnotes
    1 Contributed equally to this work and should be regarded as joint last authors.
Published:January 06, 2017DOI:https://doi.org/10.1016/j.jvoice.2016.11.020

      Summary

      Objective

      To develop a French version of the Reflux Symptom Index (Fr-RSI) and to assess its internal consistency, reliability, and clinical validity.

      Study Design

      Controlled, prospective trial.

      Materials and Methods

      Forty-four patients with a reflux finding score > 7 and an Fr-RSI > 13 were enrolled and treated with 20 mg of pantoprazole twice daily and diet changes for 3 months. Ninety asymptomatic subjects were also included in the study. To assess reliability, Fr-RSI was completed twice within a 7-day period. Validity was assessed by comparing Fr-RSI scores with scores from the Voice Handicap Index (VHI) in 24 of 44 patients, at baseline and at 3 months posttherapy.

      Results

      The mean values of Fr-RSI at baseline and after 7 days were 20.17 ± 5.76 and 19.75 ± 7.08, respectively, for patients with laryngopharyngeal reflux (LPR) and 4.02 ± 3.49 and 3.71 ± 3.82, respectively, for controls. The test-retest reliability was high in patients with LPR (rBP = 0.78) and in healthy subjects (rBP = 0.80). Cronbach's alpha was 0.85, indicating high internal consistency. The mean Fr-RSI score significantly improved from a baseline of 20.17 ± 5.76 to 5.58 ± 3.65 after 3 months of treatment (P = 0.001), and the initial mean VHI total score significantly improved from 20.29 ± 19.62 to 12.87 ± 12.04 after treatment (P = 0.029), indicating validity of the results. However, of the subcategories of the VHI, only the mean physical score improved from a baseline of 11.19 ± 9.22 to 7.35 ± 5.96 after treatment (P = 0.016).

      Conclusion

      The Fr-RSI developed in this study demonstrated both reliability and validity. It can be easily administered to assist in diagnosing and monitoring of LPR in French-speaking patients.

      Key Words

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