Validation of the Japanese Society for Surgery of the Hand Version of the Quick Disability of the Arm Shoulder, and Hand (QuickDASH-JSSH) questionnaire

• Published in: Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association 2006-05, Vol.11 (3), p.248-253
• Main Authors: Imaeda, Toshihiko, Toh, Satoshi, Wada, Takuro, Uchiyama, Shigeharu, Okinaga, Shuji, Kusunose, Koichi, Sawaizumi, Takuya
• Format: Article
• Language: English
• Subjects: Arm; Carpal Tunnel Syndrome - surgery; Cross-Cultural Comparison; Disability Evaluation; Hand - surgery; Humans; Japan; Original; Outcome Assessment (Health Care); Pain Measurement; Reproducibility of Results; Shoulder; Surveys and Questionnaires
• ISSN: 0949-2658; 1436-2023
• DOI: 10.1007/s00776-006-1013-1

The Quick Disability of the Arm, Shoulder, and Hand (QuickDASH) questionnaire is a region-specific, selfadministered questionnaire, which consists of a disability/symptom (QuickDASH-DS) scale, and the same two optional modules, the work (DASH-W) and the sport/music (DASHSM) modules, as the DASH. After the Japanese version of DASH (DASH-JSSH) was cross-culturally adapted and developed, we made the Japanese version of QuickDASH (QuickDASH-JSSH) by extracting 11 out of 30 items of the DASH-JSSH regarding disability/symptoms. The purpose of this study was to test the reliability, validity, and responsiveness of QuickDASH-JSSH. A series of 72 patients with upper extremity disorders completed the QuickDASH-JSSH, the 36-Item Short-Form Health Survey (SF-36), and the Visual Analog Scale (VAS) for pain. Thirty-eight of the patients were reassessed for test–retest reliability 1 or 2weeks later. Reliability was investigated by the reproducibility and internal consistency. To analyze the validity, a principal component analysis and the correlation coefficients between the QuickDASH-JSSH and the SF-36 were obtained. The responsiveness was examined by calculating the standardized response mean (SRM; mean change/SD) and effect size (mean change/SD of baseline value) after carpal tunnel release of the 17 patients with carpal tunnel syndrome. Cronbach’s alpha coefficient in the QuickDASH-DS was 0.88. The intraclass correlation coefficient (ICC) for the same was 0.82. The unidimensionality of the QuickDASH-DS was confirmed. The correlation coefficients between the QuickDASH-DS and the DASH-DS, DASH-W, or the DASH-SM were 0.92, 0.81, or 0.76, respectively. The correlation coefficients between the QuickDASH-DS score and the subscales of the SF-36 ranged from −0.29 to −0.73. The correlation coefficient between the QuickDASH-DS score and the VAS for pain was 0.52. The SRM/effect size of QuickDASHDS was −0.54/−0.37, which indicated moderate sensitivity. The Japanese version of QuickDASH has equivalent evaluation capacities to the original QuickDASH.