Sedighe Rezaee1, Maryam Jalali2, Taher Babaee1, Mohammad Kamali3. 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. 2. Department of Orthotics and Prosthetics, School of Rehabilitation Sciences, Iran University of Medical Sciences, Madadkaran Avenue, Shahnazari St., Madar square, Mirdamad Blvd., Tehran, Iran. Electronic address: jalali.m@iums.ac.ir. 3. Rehabilitation Research Center, School of Rehabilitation Sciences, Iran University of Medical Sciences, Madadkaran Avenue, Shahnazari St., Madar square, Mirdamad Blvd., Tehran, Iran.
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.
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.