functional mobility was related to slower scores on a 400 m timed gait task [4]. Cognitive function has previously been related to fall risk in long-term care environments [5]. Although cogni- tive loss generally makes rehabilitation more difficult for the healthcare team, Morghen et al. recently reported that persons with moderate to severe cognitive impairments were often able to ambulate independently 1 yr after total hip replacement [6]. Physical therapy intervention in the home appears to have a positive effect on persons receiving care in the home. An intensive 10 wk (2 times per wk) program of progressive resistive exercises in the home 6 mo post hip fracture discharge produced changes in gait speed com- pared with a control group that were maintained at the 3 mo follow-up visit [7]. Home-based walking programs in older persons living in the community have supported changes in quality of life and a shuttle stamina walk test [8]. The location where seniors ambulate and the inten- sity of the walking program have been related to cogni- tive status, with higher-functioning seniors ambulating more outdoors in parks and less in shopping malls [9]. Therefore, cognitive function and gait performance appear to be related [1,5]. Rehabilitation in the home-care setting is designed to safely reintroduce people to their community. The Out- come and Assessment Information Set (OASIS) is the standardized tool used in the United States at patient intake to attempt to monitor care in home-care agencies and to adjust payments to account for differences in patients [10]. The purpose of this study was to determine whether there was a relationship between cognitive func- tioning in a large home-care agency Medicare OASIS database and observed gait/balance performance. This article attempts to describe the relationship between the OASIS measure of cognition and standardized measures of gait performance. This relationship has not previously been described in the home-care practice setting. Stan- dardized measures of gait are not commonly performed in the home-care setting, but are often used to document gait impairments in community-living older persons