日语版颈部功能障碍指数的效度、信度及反应度
Validity, reliability and responsiveness of the Japanese version of the Neck Disability Index.
作者信息
Takeshita Katsushi, Hosono Noboru, Kawaguchi Yoshiharu, Hasegawa Kyoichi, Isomura Tatsuya, Oshima Yasushi, Ono Takashi, Oshina Masahito, Oda Takenori, Kato So, Yonenobu Kazuo
机构信息
Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
出版信息
J Orthop Sci. 2013 Jan;18(1):14-21. doi: 10.1007/s00776-012-0304-y. Epub 2012 Sep 4.
BACKGROUND
The Neck Disability Index (NDI) is one of the most widely used questionnaires for neck pain. The purpose of this study was to validate the Japanese NDI.
METHODS
We performed two surveys with an 8-week interval in 130 patients with neck pain, radiculopathy and myelopathy. We asked patients to answer two versions of the Japanese NDI: the original NDI, which had been completed by a forward-backward translation procedure, and the modified NDI, which has the phrase "because of neck pain" to the phase "because of neck pain or numbness in the arm." The other parameters examined were the strength of pain and numbness, the Japanese Orthopaedic Association Cervical Myelopathy Evaluation Questionnaire, the Hospital Anxiety and Depression Scale, and Short Form 36. Attending surgeons judged the symptom severity. Patients were asked to report the patient global impression of change (PGIC) at the second survey. The internal consistency, criterion-related and discriminative validity, and reliability were evaluated.
RESULTS
The original NDI and the modified NDI were 26.9 ± 17.1 and 29.9 ± 15.5, respectively. The Cronbach α values of the original NDI and the modified NDI were 0.92 and 0.89, respectively. Both versions of the NDI had good to excellent correlative coefficients with the related domains. The modified NDI had a higher validity for numbness and mental health-related QOL. The symptom severity was significantly correlated with the modified NDI. The intraclass correlation coefficients of the two surveys of the modified and original NDI were comparable. The effect sizes of the modified and the original NDI were 0.64 and 0.55, respectively. Spearman's ρ between the change of the NDI and the PGIC was 0.47 in the original NDI and 0.59 in the modified NDI.
CONCLUSIONS
We demonstrated the validity, reliability and responsiveness of the Japanese NDI. The modified NDI was more strongly correlated with numbness and mental health-related QOL.
背景
颈部功能障碍指数（NDI）是用于颈部疼痛的最广泛使用的问卷之一。本研究的目的是验证日语版NDI。
方法
我们对130例患有颈部疼痛、神经根病和脊髓病的患者进行了两项间隔8周的调查。我们要求患者回答两个版本的日语NDI：原始NDI，通过前后翻译程序完成；以及修改后的NDI，将“由于颈部疼痛”改为“由于颈部疼痛或手臂麻木”。检查的其他参数包括疼痛和麻木的强度、日本骨科协会脊髓病评估问卷、医院焦虑和抑郁量表以及简明健康状况调查量表（SF-36）。主治外科医生判断症状严重程度。在第二次调查时，要求患者报告患者整体变化印象（PGIC）。评估了内部一致性、与标准相关的效度、区分效度和信度。
结果
原始NDI和修改后的NDI分别为26.9±17.1和29.9±15.5。原始NDI和修改后的NDI的Cronbach α值分别为0.92和0.89。两个版本的NDI与相关领域的相关系数均良好至优秀。修改后的NDI在麻木和心理健康相关生活质量方面具有更高的效度。症状严重程度与修改后的NDI显著相关。修改后的NDI和原始NDI两次调查的组内相关系数具有可比性。修改后的NDI和原始NDI的效应大小分别为0.64和0.55。原始NDI中NDI变化与PGIC之间的Spearman ρ为0.47，修改后的NDI中为0.59。
结论
我们证明了日语版NDI的效度、信度和反应度。修改后的NDI与麻木和心理健康相关生活质量的相关性更强。
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