Purpose] The purpose of this study was to investigate the effect of cognitive function on Activities of Daily Living (ADL) of post-stroke patients. [Subjects] This study examined 60 stroke patients admitted to a rehabilitation department in Korea between January 2010 and October 2011. All patients were evaluated using the Modified Barthel Index (MBI), Mini-Mental State Examination (MMSE), and the Loewenstein Occupational Therapy Cognitive Assessment for Geriatric Population (LOTCA-G) upon

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... ion. One-way ANOVA, correlation, and multiple regression analyses were used to analyze the data. [Results] There were significant differences between groups categorized by MMSE scores in MBI. Significant correlations were observed between MBI and area subscores of LOTCA-G, with the exception of memory. Regression analysis showed that perception was the primary explanatory variable of ADL performance. [Conclusion] Perception had the strongest correlation with and the highest explanatory power of ADL performance. Therefore, the LOTCA-G area of perception may be a useful indicator of the level of ADL performance of stroke patients.