Table 3.
Falls, physical performance tests and gait variables
|
Variables |
Model 1 |
Model 2 |
||
|---|---|---|---|---|
| OR (95% CI) | P value | OR (95% CI) | P value | |
| Five chair stands |
1.12 (1.02–1.22) |
0.016 |
|
|
| Timed up and go test |
1.08 (1.02–1.15) |
0.013 |
1.11 (0.98–1.25) |
0.092 |
| Walking speed |
0.02 (0.001–0.23) |
0.002 |
|
|
| Upper trunk |
|
|
|
|
| HR-VT |
0.16 (0.06–0.49) |
0.001 |
0.24 (0.07–0.84) |
0.026 |
| HR-ML |
0.69 (0.34–1.40) |
0.304 |
|
|
| HR-AP |
0.31 (0.13–0.73) |
0.007 |
|
|
| Lower trunk |
|
|
|
|
| HR-VT |
0.35 (0.15–0.83) |
0.017 |
|
|
| HR-ML |
0.24 (0.06–0.95) |
0.042 |
|
|
| HR-AP | 0.43 (0.21–0.90) | 0.024 | ||
Logistic regression analyses were conducted with fall/non-fall as the dependent variable. Physical performance scores and gait parameters derived from trunk acceleration were included as independent variables. Model 1 shows the crude odds ratios obtained in bivariate analyses for each independent variable. Model 2 was developed by stepwise variable selection. OR: odds ratio; CI: confidence interval; HR: harmonic ratio; VT: vertical; ML: mediolateral; AP: anteroposterior.