Supplementary Material for: Low Frontal Assessment Battery Score as a Risk Factor for Falling in Patients with Hoehn-Yahr Stage III Parkinson's Disease: A 2-Year Prospective Study
datasetposted on 21.01.2014 by Kataoka H., Tanaka N., Saeki K., Kiriyama T., Ueno S.
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Background: Recently, we evaluated factors responsible for falling, including walking speed evaluated with the use of originally designed, suddenly narrowed paths, in patients with Hoehn-Yahr stage III PD. We prospectively studied the same cohort of patients with PD who were followed up for 2 years, to determine predictors of future falls. Methods: We performed clinical assessments and evaluated balance in 26 patients. A total of 19 variables including PD-related independent variables, balance investigation-related independent variables and gait independent-related variables were evaluated. Results: The Frontal Assessment Battery (FAB) score (p = 0.002), Tinetti balance (p = 0.009), and gait velocity (p = 0.001) were higher in fallers than in non-fallers. On multiple logistic regression analysis, the FAB score was related to falling (odds ratio = 3.328, p = 0.033, 95% confidence interval = 1.104-10.03). On the FAB, the scores of ‘inhibitory control' and ‘sensitivity to interference' were significantly lower in fallers than in non-fallers. Conclusions: The use of the originally designed, suddenly narrowed path was the primary reason for demonstrating for the first time that a low FAB score is a risk factor for future falls. Calculation of the FAB score may be useful for predicting the risk of future falls.