Table 6 Factors in factor analysis and Varimax rotated factor matrix of the Lequesne index
Factor | F1 | F2 |
|---|---|---|
Factors in factor analysis | ||
Eigen value | 5.6 | 1.2 |
% of variance | 56.1 | 11.7 |
Cumulative % | 56.1 | 67.8 |
Varimax rotated factor matrix | ||
L1A (pain or discomfort during nocturnal bed rest) | 0.71 | 0.11 |
L1B (duration of morning stiffness or pain after getting up) | 0.82 | 0.20 |
L1C (remaining standing for 30 min increases pain) | -0.09 | 0.84 |
L1D (pain on walking) | 0.33 | 0.62 |
L1E (pain or discomfort when getting up from sitting position without the help of arms) | 0.69 | − 0.19 |
L2-maximum distance walked | 0.66 | 0.56 |
L3A (can you go up a standard flight of stairs) | 0.66 | 0.58 |
L3B (can you go down a standard flight of stairs) | 0.76 | 0.46 |
L3C (can you squat) | 0.75 | 0.41 |
L3D (can you walk on uneven ground) | 0.77 | 0.43 |