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Reliability and Concurrent Validity of a Culturally Adapted Persian Version of the Brace Questionnaire in Adolescents With Idiopathic Scoliosis

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Abstract

Study Design

Cross-sectional.

Objectives

To determine the validity and reliability of culturally adapted Persian version of the Brace Questionnaire (P-BrQ).

Summary of Background Data

The BrQ has proved to be a reliable and valid instrument for evaluating the quality of life of adolescents with idiopathic scoliosis and has been translated to different languages. But, lack of a Persian translated version makes its use impractical in the Persian speaking scoliotic patients.

Methods

Forward and backward translation of P-BrQ was conducted according to the International Quality of Life Assessment guidelines. The final version of the P-BrQ was administered to 51 adolescents (1 boy and 50 girls) with idiopathic scoliosis. The mean age of the participants was 13.88 ± 2.14 years. The questionnaire’s internal consistency was determined using Cronbach’s alpha. A subgroup of 38 participants were randomly selected to complete the BrQ for a second time one week later. The test-retest reliability was then analyzed using the intraclass correlation coefficient, while the concurrent validity was assessed by comparing the BrQ with the Scoliosis Research Society-22 questionnaire.

Results

The total Cronbach’s alpha coefficient of the P-BrQ was 0.96, and the overall intraclass correlation coefficient of the questionnaire was also 0.96. The intraclass correlation coefficients for the corresponding domains were as follows: general health perception, 0.96; physical functioning, 0.96; emotional functioning, 0.98; self-esteem, 0.80; vitality, 0.97; school activity, 0.98; pain, 0.97; and social functioning, 0.98.

Conclusions

The culturally adapted Persian version of the BrQ can be used to assess the quality of life of adolescents with idiopathic scoliosis who wear a brace.

Level of Evidence

II.

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Authors and Affiliations

  1. Department of Orthotics and Prosthetics, School of Rehabilitation Sciences, Iran University of Medical Sciences, Madadkaran Avenue, Shahnazari St., Madar square, Mirdamad Blvd., Tehran, Iran

    Sedighe Rezaee MSc, Maryam Jalali PhD & Taher Babaee PhD

  2. Rehabilitation Research Center, School of Rehabilitation Sciences, Iran University of Medical Sciences, Madadkaran Avenue, Shahnazari St., Madar square, Mirdamad Blvd., Tehran, Iran

    Mohammad Kamali PhD

Authors
  1. Sedighe Rezaee MSc
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  2. Maryam Jalali PhD
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  3. Taher Babaee PhD
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  4. Mohammad Kamali PhD
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Corresponding author

Correspondence to Maryam Jalali PhD.

Additional information

Author disclosures: SR (none), MJ (none), TB (none), MK (none).

Funding: This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors. This study was supported by the research committee of Iran University of Medical Sciences. There is no conflict of interest about the study.

IRB approval: The study was approved by institutional review board of Iran University of Medical Sciences (IRB approval code: 1395.9211502204).

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Rezaee, S., Jalali, M., Babaee, T. et al. Reliability and Concurrent Validity of a Culturally Adapted Persian Version of the Brace Questionnaire in Adolescents With Idiopathic Scoliosis. Spine Deform 7, 553–558 (2019). https://doi.org/10.1016/j.jspd.2018.10.001

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  • DOI: https://doi.org/10.1016/j.jspd.2018.10.001

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