Goto Fumiyuki, Tsutsumi Tomoko, Ogawa Kaoru
Department of Otolaryngology, Hino Municipal Hospital, 4-3-1 Tamadahira Hinoshi, Tokyo, Japan.
Acta Otolaryngol. 2011 Aug;131(8):817-25. doi: 10.3109/00016489.2011.565423.
The Japanese version of the Dizziness Handicap Inventory (DHI) is a reliable, comprehensively validated, and clinically useful tool to measure self-perceived handicap associated with dizziness.
The DHI is a useful instrument to document the consequences of vestibular and/or balance impairment. A Japanese version of this self-assessment inventory is needed to evaluate the handicapping effects imposed by vestibular system disease in Japanese patients. The purpose of this study was to determine the internal consistency of the reliability of the Japanese version of the DHI.
We recruited 176 patients between January and September 2008 from the outpatients of the Department of Otolaryngology, Hino Municipal Hospital, Japan. The DHI was translated into Japanese, and the test was independently completed by each subject. We used principal component analysis to evaluate the different dimensions of the DHI. The internal consistency of the retained factors was investigated by estimating Cronbach's alpha coefficients and corrected item-total correlations.
Cronbach's coefficients for internal consistency were high for the total scale (0.93) and good for the subscales: functional subscale (0.87), physical subscale (0.82), and emotional subscale (0.85). The correlation matrix demonstrated that the variables were suited for factor analysis. The determinant was 1.26E(-6), which is slightly under the recommended value. Bartlett's test was highly significant (p < 0.0001), and the Kaiser-Meyer-Olkin measure of sampling adequacy was 0.91.
日语版头晕残障量表（DHI）是一种可靠、经过全面验证且在临床上有用的工具，用于测量与头晕相关的自我感知残障情况。
DHI是一种用于记录前庭和/或平衡功能损害后果的有用工具。需要一个日语版的自我评估量表来评估日本患者前庭系统疾病所造成的残障影响。本研究的目的是确定日语版DHI可靠性的内部一致性。
我们于2008年1月至9月从日本日野市立医院耳鼻喉科门诊招募了176名患者。将DHI翻译成日语，每位受试者独立完成测试。我们使用主成分分析来评估DHI的不同维度。通过估计克朗巴哈系数和校正的项目-总分相关性来研究保留因子的内部一致性。
总量表的内部一致性克朗巴哈系数较高（0.93），各分量表的情况良好：功能分量表（0.87）、身体分量表（0.82）和情感分量表（0.85）。相关矩阵表明变量适合进行因子分析。行列式为1.26E(-6)，略低于推荐值。巴特利特检验具有高度显著性（p < 0.0001），凯泽-迈耶-奥尔金抽样适当性度量为0.91。
