Table 4 Item to scale correlation with each section and LAI total
Parameters | Non-parametric Spearman’s rank Correlation (ρ) | |
|---|---|---|
Sections | LAI | |
Pain or discomfort | 0.66 | |
L1A (pain or discomfort during nocturnal bed rest) | 0.38 | 0.49 |
L1B (duration of morning stiffness or pain after getting up) | 0.50 | 0.66 |
L1C (remaining standing for 30 min increases pain) | 0.10 | 0.26 |
L1D (pain on walking) | 0.25 | 0.37 |
L1E (pain or discomfort when getting up from sitting position without the help of arms) | 0.16 | 0.36 |
Maximum distance walked | 0.67 | |
Activities of daily living | 0.77 | |
L3A (can you go up a standard flight of stairs) | 0.62 | 0.70 |
L3B (can you go down a standard flight of stairs) | 0.75 | 0.78 |
L3C (can you squat) | 0.66 | 0.70 |
L3D (can you walk on uneven ground) | 0.70 | 0.74 |