Translation, Cross-cultural Adaptation and Clinimetric Properties of the Brazilian Portuguese Version of the Brace Questionnaire

Overview

Journal Spine Deform

Publisher Springer Nature

Date 2024 Apr 30

PMID 38689179

Authors

Isabela Pedrosa Fernandes

Marcella Veronnica Pereira Gomes

Rodrigo Mantelatto Andrade

Ariane Verttu Schmidt

Ana Paula Ribeiro

Mauricio Oliveira Magalhaes

Affiliations

Soon will be listed here.

Abstract

Purpose: To perform a cross-cultural adaptation and validation of the Brazilian-Portuguese versions of the Brace Questionnaire in adolescent idiopathic scoliosis.

Methods: A forward-backward translation process was employed to produce a Brazilian Portuguese version of the Brace Questionnaire, followed by comprehensive cross-cultural adaptation stages. The measurements of internal consistency and test-retest reliability were assessed by Cronbach's a and intraclass correlation coefficient (ICC), respectively. The Pearson's correlation coefficient was used to analyze the concurrent validity by comparison with the Scoliosis Research Society-22r questionnaire.

Results: A total of 84 scoliosis patients (age 13.4 ± 2.0 years, thoracic Cobb angle 33.3° ± 13.8°, and lumbar Cobb angle 29.8° ± 14.3°) were included. The Brace Questionnaire showed excellent internal consistency (Cronbach α = 0.93) and moderate reliability (ICC = 0.86). The correlations between the Brace Questionnaire and Scoliosis Research Society-22 were r = 0.66; p = 0.011. In addition, it was found that the Brazilian version of the Brace Questionnaire does not have ceiling and floor effects.

Conclusions: The Brazilian-Portuguese adaptation of the brace questionnaire shows excellent reliability and can be a valid tool for psychometric assessment in adolescent idiopathic scoliosis.

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