Table 5. Multivariable Logistic Regression Showing an Association Between Falls (Dependent Variable) and CoV of Stride Time and Gait Speed (Independent Variable) Per Cognitive Status.
| Multivariable* | |||
|---|---|---|---|
|
| |||
| OR | 95% CI | P | |
| CHI | |||
| CoV of stride time | 1.14 | 1.03–1.27 | .012 |
| Gait speed | 0.99 | 0.98–0.99 | .001 |
| aMCI | |||
| CoV of stride time | 1.28 | 0.98–1.68 | .073 |
| Gait speed | 0.98 | 0.95–1.00 | .067 |
| naMCI | |||
| CoV of stride time | 1.06 | 0.95–1.18 | .284 |
| Gait speed | 0.98 | 0.97–1.00 | .019 |
| Mild AD | |||
| CoV of stride time | 0.95 | 0.89–1.02 | .159 |
| Gait speed | 0.99 | 0.97–1.00 | .149 |
| Mild non-AD | |||
| CoV of stride time | 1.11 | 0.96–1.28 | .151 |
| Gait speed | 0.99 | 0.97–1.01 | .375 |
| Moderate AD | |||
| CoV of stride time | 0.99 | 0.97–1.02 | .479 |
| Gait speed | 0.98 | 0.96–0.99 | .007 |
| Moderate non-AD | |||
| CoV of stride time | 1.00 | 0.92–1.10 | .962 |
| Gait speed | 0.97 | 0.94–0.99 | .007 |
CoV is calculated following the formula: (SD/mean value) × 100. Values of P < .05 are bolded.
*
Adjusted for age, gender, education, number of drugs, psychoactive drugs (ie, benzodiazepines or antidepressants or neuroleptics), presence of depression (assessed with the 4-item, the 15-item, or the 30-item Geriatric Depression Scale [score ≥1 or ≥5 or ≥10 indicated the presence of depressive symptoms, respectively]), and study center.