Thomas Madhavi, Jankovic Joseph, Suteerawattananon Monthaporn, Wankadia Sharmin, Caroline Kavitha Salomi, Vuong Kevin Dat, Protas Elizabeth
Parkinson's Disease Center and Movement Disorders Clinic, Department of Neurology, Baylor College of Medicine, 6550 Fannin Street no. 1801, Houston, TX 77030, USA.
J Neurol Sci. 2004 Jan 15;217(1):89-99. doi: 10.1016/j.jns.2003.09.005.
Gait and Balance Scale (GABS) consists of historical information and examination of 14 different gait and balance parameters designed to assess the severity of these functional domains. Thirty-five patients with Parkinson's disease (PD), Hoehn and Yahr stages 1-3, were tested during their "off" period. GABS items were compared to quantitative data from two computerized gait analysis instruments, GAITRite and Pro Balance Master. Intra-class correlation coefficients were calculated to establish reliability. Intra-rater test-retest reliability was determined using Cohen's Kappa statistic. Concurrent validity was derived using the Spearman's rho test with the items from GABS, GAITRite and Balance Master. Intra-rater reliability was high with k>0.41 (k=kappa statistic) for 17 items, 6 had k>0.61. When performing validity measurements, a number of items on the GABS had a correlation coefficient significant at p<0.01 (2-tailed). Posture, pull test, balance during stance, single limb stance, tandem stance, turning, toe walking and functional reach had significant correlation with Balance Master data (R=0.46-1). Gait, arm swing, gait speed, steps/5 m, 'up-and-go test', modified performance oriented assessment of gait scale and provocative testing had significant correlation with the GAITRite items (R=0.51-0.83). GABS is an easy-to-use comprehensive clinical scale with high intra-rater and internal item reliability. We have shown concurrent validity with two computerized gait analysis instruments. We expect GABS to have a particular utility in clinical trials designed to modify functional impairment associated with abnormalities in gait and balance.
步态与平衡量表（GABS）由病史信息以及对14个不同步态和平衡参数的检查组成，旨在评估这些功能领域的严重程度。35例帕金森病（PD）患者，Hoehn - Yahr分期为1 - 3期，在“关”期接受测试。将GABS项目与来自两种计算机化步态分析仪器GAITRite和专业平衡仪的定量数据进行比较。计算组内相关系数以确定可靠性。使用科恩kappa统计量确定评分者内重测信度。通过对GABS、GAITRite和平衡仪的项目进行斯皮尔曼等级相关检验得出同时效度。评分者内信度较高，17个项目的kappa（k）>0.41（k为kappa统计量），6个项目的k>0.61。在进行效度测量时，GABS上的许多项目的相关系数在p<0.01（双侧）时具有显著性。姿势、拉拽试验、站立平衡、单腿站立、前后站立、转身、踮脚行走和功能性够物与平衡仪数据有显著相关性（R = 0.46 - 1）。步态、摆臂、步速、5米步数、“起立 - 行走”试验、改良的步态量表性能导向评估和激发试验与GAITRite项目有显著相关性（R = 0.51 - 0.83）。GABS是一种易于使用的综合临床量表，具有较高的评分者内信度和项目内部信度。我们已经证明了它与两种计算机化步态分析仪器的同时效度。我们预计GABS在旨在改善与步态和平衡异常相关的功能障碍的临床试验中具有特殊用途。
