Table 3.
LMEM Identifying Single Task Gait Characteristics and Global Cognition as Predictors of Cognitive Decline in PD
| Cognitive domain | Cognitive assessment | Predictor domain | Predictor | Regression coefficients | ||||
|---|---|---|---|---|---|---|---|---|
| β | SE | T | p | |||||
| Gait | Attention | CRT | Variability | Step length SD × session | 1639.29 | 807.78 | 2.10 | .04 |
| Fluctuating attention | CRTCV | Pace | Step velocity × session | −4.05 | 1.34 | −3.02 | <.01 | |
| Step length × session | −8.64 | 2.86 | −3.02 | <.01 | ||||
| Step swing SD × session | 2.56 | 0.93 | 2.75 | <.01 | ||||
| Variability | Step time SD × session | 2.14 | 0.90 | 2.38 | .02 | |||
| Step stance SD × session | 1.98 | 0.77 | 2.58 | .01 | ||||
| Step length SD × session | 115.68 | 40.41 | 2.86 | <.01 | ||||
| Rhythm | Step stance time × session | 0.01 | 0.03 | 2.26 | .03 | |||
| Postural control | Step width × session | 26.69 | 9.02 | 2.96 | <.01 | |||
| Visual memory | SRM | Pace | Step velocity × session | 1.32 | 0.56 | 2.33 | .02 | |
| Step length × session | 2.93 | 1.19 | 2.47 | .01 | ||||
| Cognition | Attention | CRT | Global cognition | MoCA × session | −5.68 | 1.54 | −3.70 | <.01 |
| Fluctuating attention | CRTCV | −1.68 | 0.80 | −2.10 | .04 | |||
| Visual memory | SRM | 0.05 | 0.03 | 1.45 | .15 | |||
Note: CRT = choice reaction time; CV = coefficient of variance; MoCA = Montreal cognitive assessment; SD = standard deviation; SE = standard error; SRM = spatial recognition memory. Bold values represent significance level p ≤ 0.01.