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Percentage Accuracy of Activity Monitors Stratified by Assistive Device Use.
| Activity monitor | No device M (SD) N = 22 |
Wheeled Walker/rollator M (SD) N = 17 |
Cane M (SD) N = 4 |
p value |
|---|---|---|---|---|
| Actigraph GT3X | 67.3 (35.6) | 32.9 (28.8) | 43.0 (26.4) | .0071 |
| ActivPAL | 96.3 (7.0) | 92.7 (10.2) | 80.6 (27.3) | .0392 |
| StepWatch | 99.1 (1.0) | 99.2 (0.7) | 97.7 (4.4) | .7312 |
Note. Accuracy defined as monitor steps/observed steps × 100 with 100% indicating perfect accuracy.
