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Reliability and Validity of the French-Canadian Version of the Scoliosis Research Society 22 Questionnaire in France

Lonjon, Guillaume, MD*; Ilharreborde, Brice, MD, PhD*; Odent, Thierry, MD, PhD; Moreau, Sébastien, MD*; Glorion, Christophe, MD; Mazda, Keyvan, MD*

doi: 10.1097/BRS.0000000000000080
Health Services Research
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SDC

Study Design. Outcome study to determine the internal consistency, reproducibility, and concurrent validity of the French-Canadian version of the Scoliosis Research Society 22 (SRS-22 fcv) patient questionnaire in France.

Objective. To determine whether the SRS-22 fcv can be used in a population from France.

Summary of Background Data. The SRS-22 has been translated and validated in multiple countries, notably in the French-Canadian language in Quebec, Canada. Use of SRS-22 fcv seems appropriate for evaluating adolescent idiopathic scoliosis in France. However, French-Canadian French is noticeably different from the French spoken in France, and no study has investigated the use of a French-Canadian version of a health-quality questionnaire in another French population.

Methods. The methods used for validating the SRS-22 fcv in Quebec were adopted for use with a group of 200 adolescents with idiopathic scoliosis and 60 healthy adolescents in France. Reliability and reproducibility were measured by the Cronbach α and intraclass correlation coefficient (ICC), construct validity by factorial analysis, concurrent validity by the Short-Form of the survey, and discriminant validity by analysis of variance and multivariate linear regression.

Results. In France, the SRS-22 fcv showed good global internal consistency (Cronbach α = 0.87, intraclass correlation coefficient = 0.92), a coherent factorial structure, and high correlation coefficients between the SRS-22 fcv and Short-Form of the survey (P < 0.001). However, reliability and validity were slightly less than that for the instrument's original validation and the validation of the SRS-22 fcv in Quebec. These differences could be explained by language and cultural differences.

Conclusion. The SRS-22 fcv is relevant for use in France, but further development and validation of a specific French questionnaire remain necessary to improve the assessment of functional outcomes of adolescents with scoliosis in France.

Level of Evidence: N/A

The aim of this study was to assess the use of the French-Canadian version of the Scoliosis Research Society 22 (SRS-22 fcv) in France because of differences between the French-Canadian culture and the French culture in Europe. This study validated the use of the SRS-22 fcv for adolescents in France.

*Peditaric Orthopaedic Department, Robert Debré Hospital, Assistance Publique-Hôpitaux de Paris, Paris Diderot University, Paris, France; and

Peditaric Orthopaedic Department, Necker Hospital, Assistance Publique-Hôpitaux de Paris, Paris Descartes University, Paris, France.

Address correspondence and reprint requests to Guillaume Lonjon, MD, Pediatric Orthopaedic Department, Robert Debré Hospital, AP-HP, Paris-Diderot University, 48 bd Serurier, 75019 Paris, France; E-mail: dr.guillaume.lonjon@gmail.com

Acknowledgment date: March 15, 2013. First revision date: August 10, 2013. Acceptance date: August 23, 2013.

The manuscript submitted does not contain information about medical device(s)/drug(s).

No funds were received in support of this work.

Relevant financial activities outside the submitted work: consultancy and royalties.

© 2014 by Lippincott Williams & Wilkins