• Hideki Hashimoto, Takeshi Sase, Yasuhisa Arai, Toru Maruyama, Keijirou Isobe, and Yasuhiro Shouno.
• Department of Health Management and Policy, University of Tokyo Hospital, Tokyo, Japan. hidehashimoto-circ@umin.ac.jp
• Spine. 2007 Feb 15;32(4):E141-6.

Study DesignA cross-sectional observational study to determine the response distribution, internal consistency, and construct, concurrent, and discriminative validities of The Scoliosis Research Society-22 (SRS-22) Patient Questionnaire translated into Japanese as compared with the other language versions.ObjectiveTo validate the Japanese version of SRS22.Summary Of Background DataThe SRS-22 was translated into several languages but yet not into Japanese.MethodsThe Japanese SRS-22 and Medical Outcomes Study Short Form 36 were simultaneously administered to 114 adolescent idiopathic scoliosis patients.ResultsExploratory factor analysis revealed a 4-factor structure, though several items were not loaded as theoretically expected. The originally constructed Japanese SRS-22 subscales and the English version showed similar response distribution. Internal consistency was fair but lower than that of the English version. The concurrent validity of the translated version, except for the self-image subscale, was supported using Medical Outcomes Study Short Form 36 subscales as a reference. The function scale differed significantly by curve angle magnitude and treatment status. The self-image score was the highest in patients under observation when curve angle was < 40 degrees, while postsurgical patients marked the highest scores when the angle > or = 40 degrees, respectively.ConclusionsThe Japanese SRS-22 is valid and may be useful for clinical evaluation of Japanese scoliosis patients, though the self-image subscale may need further assessment.

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