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Reliability, validity, and responsiveness of the Japanese version of the Patient-Rated Wrist Evaluation |
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| Authors: | Toshihiko Imaeda Shigeharu Uchiyama Takuro Wada Shuji Okinaga Takuya Sawaizumi Shohei Omokawa Toshimitsu Momose Hisao Moritomo Hiroyuki Gotani Yukio Abe Jun Nishida Fuminori Kanaya |
| Affiliation: | 1. Department of Food and Nutritional Environment, College of Human Life and Environment, Kinjo Gakuin University, 2-1723 Omori, Moriyama-ku, Nagoya, 465-8521, Japan 2. Department of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Japan 3. Department of Orthopaedic Surgery, School of Medicine, Sapporo Medical University, Sapporo, Japan 4. Department of Orthopaedic Surgery, Tokyo Teishin Hospital, Tokyo, Japan 5. Department of Orthopaedic Surgery, Nippon Medical School, Tokyo, Japan 6. Department of Orthopaedic Surgery, Ishin-kai Yao General Hospital, Yao, Japan 7. Department of Orthopaedics, Suwa Red Cross Hospital, Suwa, Japan 8. Department of Orthopaedic Surgery, Graduate School of Medicine, Osaka University, Osaka, Japan 9. Seikeikai Osaka Trauma and Microsurgery Center, Osaka, Japan 10. Department of Orthopaedic Surgery, Saiseikai Shimonoseki General Hospital, Shimonoseki, Japan 11. Department of Orthopaedic Surgery, Iwate Medical University, Morioka, Japan 12. Orthopedic Surgery, Department of Clinical Neuroscience, Faculty of Medicine, University of the Ryukyus, Okinawa, Japan |
| Abstract: | BackgroundThe Patient-Rated Wrist Evaluation is a regionspecific, self-administered questionnaire consisting of a pain scale (PRWE-P) and a functional scale (PRWE-F), with the latter consisting of specific function (PRWE-SF) and usual function (PRWE-UF). The PRWE was cross-culturally adapted from the original English version by the Impairment Evaluation Committee, Japanese Society for Surgery of the Hand (JSSH). The purpose of this study was to test the reliability, validity, and responsiveness of the Japanese version of PRWE (PRWE-J).MethodsA consecutive series of 117 patients with wrist disorders completed the PRWE-J, the JSSH version of the Disabilities of the Arm, Shoulder, and Hand (DASH-JSSH) questionnaire and the 36-Item Short-Form Health Survey (SF-36). Of the 117 patients, 71 were reassessed for test-retest reliability 1 or 2 weeks later. Reliability was investigated by reproducibility and internal consistency. To analyze the validity, a factor analysis (principal axis factoring) of PRWE-J and correlation coefficients between PRWE-J and DASH-JSSH were obtained. Responsiveness was examined by calculating the standardized response mean (SRM) (mean change/SD) and effect size (mean change/SD of baseline value) after open surgery in 50 patients.ResultsCronbach’s α coefficients for PRWE-P, PRWE-F, and PRWE were 0.90, 0.95, and 0.95, respectively. The intraclass correlation coefficients (ICCs) for the same were 0.86, 0.93, and 0.92, respectively. Unidimensionality of PRWE-P was confirmed. Bidimensionality of PRWE-F was confirmed and separated clearly into PRWE-SF and PRWE-UF. The correlation coefficients between PRWE-P and PRWE-F or DASH-JSSH were 0.63 or 0.63, respectively. The correlation coefficient between PRWE-F and DASH-JSSH was 0.80. The correlation coefficients between DASH-JSSH and PRWE-SF or PRWE-UF were 0.76 or 0.73, respectively. Moderate correlation was observed in “physical functioning” for SF-36 and PRWE-SF (r = ?0.46), PRWE-F (r = ?0.46), or PRWE (r = ?0.46). The SRMs/effect sizes of PRWE-P, PRWE-F, or PRWE were respectively excellent: 1.7/2.2, 1.2/1.3, 1.6/1.9.ConclusionsThe PRWE-J has evaluation capacities equivalent to those of the original PRWE. |
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