Otorhinolaryngology and Head and Neck Surgery, Federal University of São Paulo, Brazil.
Braz J Otorhinolaryngol. 2013 Mar-Apr;79(2):203-11. doi: 10.5935/1808-8694.20130036.
The Vestibular Disorders Activities of Daily Living Scale (VADL) assesses the impact of dizziness and body imbalance on the everyday activities of patients with vestibulopathy. The scale encompasses 28 activities divided into three sub-scales (functional, ambulation and instrumental).
To translate and cross-culturally adapt the VADL to the Brazilian Portuguese language and verify its reliability.
Questionnaire translation methodological research. Eighty elderly subjects (age > 65 years) with chronic dizziness arising from vestibular disorders were enrolled, of which 40 participated in the pre-testing stage and 40 in reliability analysis. Concordance Correlation Coefficient (CCC) analysis was used to assess reliability. Internal consistency was estimated using Cronbach's alpha (α).
Pre-test analysis revealed 15% of incomprehension on two activities; these items had to be adapted. The VADL-Brazil had similar levels of test-retest and inter-rater reliability for total score and presented substantial agreement (CCC = 0.79). Internal consistency was excellent for total score (α = 0.92), good for the functional (α = 0.89) and locomotion (α = 0.86) sub-scales, and poor for the instrumental subscale (α = 0.56).
The Brazilian version of the VADL was proven adequate, with good levels of reliability and internal consistency. It might be thus considered as an alternative to assess the functional capacity of vestibulopathy patients.
前庭障碍日常生活活动量表（VADL）评估头晕和身体失衡对前庭病患者日常活动的影响。该量表包括 28 项活动，分为三个子量表（功能性、步行和工具性）。
将 VADL 翻译并跨文化适应为巴西葡萄牙语，并验证其可靠性。
问卷调查翻译方法学研究。共纳入 80 名患有慢性眩晕症的老年患者（年龄>65 岁），这些患者均因前庭障碍而引起眩晕。其中 40 名患者参加了预测试阶段，40 名患者参加了可靠性分析。一致性相关系数（CCC）分析用于评估可靠性。Cronbach's alpha（α）用于估计内部一致性。
预测试分析显示，有两个活动的理解率为 15%；这些项目必须进行调整。VADL-巴西在总分的测试-重测和评分者间可靠性方面具有相似的水平，并具有实质性的一致性（CCC=0.79）。总分的内部一致性非常好（α=0.92），功能性（α=0.89）和步行（α=0.86）子量表的内部一致性良好，而工具性子量表的内部一致性较差（α=0.56）。
巴西版的 VADL 是充分的，具有良好的可靠性和内部一致性。因此，它可以作为评估前庭病患者功能能力的一种替代方法。
