Performance-based measures of gait and mobility and their ability to predict falls over the 66 months of follow-up.

*In general, as expected, only age and history of falls were significantly associated with future fall risks. Note that in contrast to the results shown in Table 2, where higher values reflect better performance and lower risk of falls, for dual tasking gait variability and the Timed Up and Go, higher values indicate worse performance. Higher scores on these two measures were associated with an increased fall risk. During the 66 months of follow-up, 3 subjects were diagnosed with Parkinson's disease (1.1%), 4 with Alzheimer's disease (1.5%) and 2 sustained a stroke (.7%). The results summarized in Tables 2–4 were essentially unchanged when analyses were repeated after excluding these subjects.BMI: body-mass index.