Table 4 Factor loading of Chinese version Glaucoma Quality of Life-15 (GQL-15-CHI) after varimax rotation
CHI-GQL-15 items | Factor 1 | Factor 2 | Factor 3 | Factor 4 |
|---|---|---|---|---|
11. Walking on steps/stairs | 0.91 | 0.11 | -0.01 | 0.13 |
10. Crossing the road | 0.90 | 0.10 | -0.01 | 0.18 |
4. Walking on uneven ground | 0.71 | 0.06 | 0.33 | 0.09 |
8. Tripping over objects | 0.37 | 0.77 | 0.16 | -0.01 |
9. Seeing objects coming from the side | -0.01 | 0.69 | -0.22 | 0.16 |
12. Bumping into objects | 0.53 | 0.65 | -0.08 | 0.03 |
1. Reading newspapers | 0.06 | -0.74 | 0.01 | 0.18 |
6. Adjusting to dim light | -0.02 | -0.01 | 0.78 | -0.06 |
7. Going from light to dark room or vice versa | -0.02 | 0.07 | 0.75 | 0.01 |
3. Seeing at night | 0.21 | -0.17 | 0.69 | 0.40 |
2. Walking after dark | 0.43 | -0.07 | 0.69 | 0.32 |
13. Judging distance of foot to step | 0.42 | 0.23 | -0.46 | 0.31 |
15. Recognizing faces | -0.02 | -0.30 | 0.05 | 0.85 |
14. Finding dropped objects | 0.28 | 0.17 | 0.06 | 0.69 |
5. Adjusting to bright light (glare) | -0.25 | -0.53 | -0.13 | -0.60 |
Eigenvalue | 4.44 | 2.82 | 1.73 | 1.24 |
Variance explained (%) | 29.61 | 18.81 | 11.50 | 8.30 |