Table 2 Item and total scores of the Walk-12G (including Cronbach α and SEM), N = 148
From: Perceived walking difficulties in Parkinson’s disease – predictors and changes over time
Walk-12G items (abbreviated) | Baseline Mean (SD) | 3-year follow-up Mean (SD) |
|---|---|---|
1. Need to use support when walking indoors | 0.62 (0.723) | 0.84 (0.809) |
2. Need to use support when walking outdoors | 0.64 (0.849) | 0.93 (0.901) |
3. Limited ability to run | 1.24 (0.860) | 1.44 (0.827) |
4. Difficult to stand when doing things | 1.12 (1.15) | 1.49 (1.31) |
5. Limited ability to climb up and down stairs | 0.97 (1.18) | 1.57 (1.40) |
6. Problems balancing when standing or walking | 1.34 (1.15) | 1.74 (1.33) |
7. Limited ability to walk | 1.31 (1.25) | 1.70 (1.29) |
8. Effortful walking | 1.47 (1.20) | 1.76 (1.29) |
9. Smoothness of walking affected | 1.49 (1.13) | 1.76 (1.22) |
10. Need to concentrate on walking | 1.32 (1.24) | 1.54 (1.30) |
11. Limited walking distance | 1.62 (1.40) | 2.01 (1.46) |
12. Slow walking | 1.62 (1.15) | 1.92 (1.26) |
Total score, Walk-12G | 14.8 (10.8) | 18.7 (12.1)† |
Internal consistency (Cronbach α) | 0.949 | 0.959 |
Standard error of measurement, SEM | 2.59 | 2.32 |