Validation of the Catherine Bergego Scale in patients with unilateral spatial neglect after stroke

ABSTRACT. The Catherine Bergego Scale (CBS) is a scale to evaluates the impact of unilateral spatial neglect (USN) on everyday life of patients after stroke. Objective: The aim of this study was to evaluate the reliability and comprehension of the Portuguese version of the CBS for patients with USN after stroke. Methods: This was a cross-sectional study in patients with stroke and USN. The CBS was translated, culturally adapted and applied by two independent investigators. The patients were also evaluated by the Behavioural Inattention Test (BIT), NIHSS, mRS and Barthel scale to assess USN severity, neurological function, disability and autonomy consecutively. Consistency and coherence were analysed using Cronbach’s α, inter-observer reliability by Kappa, and the correlation between the CBS, BIT, NIHSS, mRS, and Barthel was determined using Pearson correlation. Results: Twenty-two patients were evaluated and the observed Cronbach’s α=0.913. For intra-observer reproducibility, the 10 items showed a reasonable and high reliability between evaluators. The CBS showed a negative correlation with the BIT. There was a low correlation between the BIT and NIHSS, mRS and Barthel index. Conclusion: The CBS is an adequate and validated scale for assessing patients with USN after stroke in a Brazilian population.

摘要
凯瑟琳·贝热戈量表（Catherine Bergego Scale, CBS）是用于评估单侧空间忽略（unilateral spatial neglect, USN）对脑卒中后患者日常生活活动影响的专用量表。
目的：本研究旨在评估葡萄牙语版CBS用于脑卒中后USN患者的信度与可理解性。
方法：本研究为针对脑卒中合并USN患者的横断面研究。由两名独立评估者完成CBS的翻译、文化调适与临床施测。同时依次采用行为忽略测试（Behavioural Inattention Test, BIT）、美国国立卫生研究院卒中量表（NIHSS）、改良Rankin量表（mRS）及巴氏指数（Barthel scale），分别评估患者的USN严重程度、神经功能状态、残疾水平与自主生活能力。本研究采用克朗巴赫α系数分析量表的内部一致性与连贯性，采用Kappa检验评估观察者间信度；并通过Pearson相关分析探究CBS与BIT、NIHSS、mRS及巴氏指数的相关性。
结果：共纳入22例患者完成评估，测得克朗巴赫α系数为0.913。在观察者内重复性方面，10个评估条目均显示出合理且较高的评估者间信度。CBS与BIT呈负相关。BIT与NIHSS、mRS及巴氏指数间仅存在低度相关。
结论：CBS是一款适用于巴西人群脑卒中后USN患者的合格且经过验证的评估量表。