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Scoliosis and Spinal Disorders
Published in: Scoliosis and Spinal Disorders 1/2017

Open Access 01-12-2017 | Research

Revisiting the psychometric properties of the Scoliosis Research Society-22 (SRS-22) French version

Authors: Jean Théroux, Norman Stomski, Stanley Innes, Ariane Ballard, Christelle Khadra, Hubert Labelle, Sylvie Le May

Published in: Scoliosis and Spinal Disorders | Issue 1/2017

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Abstract

Background

Adolescent idiopathic scoliosis (AIS) is among the most common spinal deformities affecting adolescents. The Scoliosis Research Society-22 questionnaire is commonly used to assess health-related quality of life in AIS patients, including pain.
The objective of this study is to verify the psychometric properties of the Scoliosis Research Society-22 French version (SRS-22fv) questionnaire.

Methods

A prospective methodological design was used to verify the psychometric properties of the French version of the SRS-22fv. Participants were initially recruited from the orthopaedic scoliosis department at Sainte-Justine Hospital (Montreal, Canada) and completed the SRS-22fv and the SF-12 questionnaire. The SRS-22fv’s structure was evaluated through principal component analysis (PCA). Linear regression was used to assess convergent validity between the SRS-22fv and the SF-12.

Results

Data was available from 352 participants with AIS. Most participants were female (87%, n = 307), and the average age was 14.3 (SD = 1.8) years. The mean thoracic and lumbar Cobb angles were 27.9° (SD = 3.3) and 23.6° (SD = 9.4), respectively. Overall, 71.4% (n = 252) of the participants presented with spinal pain. About one-third (29%) reported thoracic pain, and almost half (44%) experienced lumbar pain. The PCA identified four redundant items, which resulted in a modified 18-item questionnaire. In comparison to the original questionnaire, the modified version showed higher levels of internal consistency for four of the five factors, explained a greater proportion of the total variance (63.3%), and generated higher inter-item total correlations.

Conclusion

We propose a shorter version of the SRS-22fv, thus the Canadian SRS-18fv, which showed an improved internal consistency and scale structure compared to the original SRS-22fv. We believe that this modified version would be better suited to assess the quality of life of adolescents with idiopathic scoliosis.
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Metadata
Title
Revisiting the psychometric properties of the Scoliosis Research Society-22 (SRS-22) French version
Authors
Jean Théroux
Norman Stomski
Stanley Innes
Ariane Ballard
Christelle Khadra
Hubert Labelle
Sylvie Le May
Publication date
01-12-2017
Publisher
BioMed Central
Published in
Scoliosis and Spinal Disorders / Issue 1/2017
Electronic ISSN: 2397-1789
DOI
https://doi.org/10.1186/s13013-017-0129-8

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