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Spanish validation of Bad Sobernheim Scoliosis Questionnaire for adolescents wearing braces
© Alomar et al; licensee BioMed Central Ltd. 2009
Published: 14 December 2009
Because of the present interest in health-related quality of life in the scientific community, the aim of our research is to demonstrate the cross-cultural reliability of the German Bad Sobernheim Scoliosis Questionnaire (BSSQ) applied to a Spanish population of adolescents with scoliosis undergoing bracing treatment.
Adolescence is considered a critical phase, and adolescent idiopathic scoliosis (AIS) can have a considerably negative impact on a patient's quality of life (Payne, Ogilvie, Resnick, Kane, Transfeldt, Blum, 1997). AIS can also produce psychosocial problems through potentially detrimental effects on body image, and bracing can exacerbate this problem. There are currently two questionnaires designed to measure quality of life in adolescents with scoliosis who are undergoing bracing treatment: the German Bad Sobernheim Stress Questionnaire (BSSQ), and the Greek Brace Questionnaire (BrQ).
Methods and results
reliability: - test-retest method with a Pearson correlation coefficient of 0.902 (p < 0.01); - internal consistency, with a Crombach's alpha of 0.809
validity: -criterion validity, using SRS-22 as criterion, Pearson correlation coefficient of 0.656 (p < 0.01); -construct validity, in an exploratory Factorial Analysis: two Main Components are found to explicate the variance at 60.8%
The BSSQ is reliable with a satisfactory internal consistency and temporal stability. It has sufficient criterion validity and a latent structure of two components according to the main components analysis. The questionnaire can be reliably used to assess quality of life among Spanish adolescents receiving bracing treatment for scoliosis. The good statistical features in the Spanish population are similar to those of the German population. In a future research, a hope is to increase the sample size, incorporate different types of braces, and clarify the structure of the questionnaire.
This article is published under license to BioMed Central Ltd.