Table 9.
Robust multiple linear regression model that correlates trait anxiety with the subscale Color vision from the quality-of-life questionnaire NEI-VFQ-25.
| Color vision | Coefficient | Robust SE | t | p > t | (95% CI) | |
|---|---|---|---|---|---|---|
| Trait Anxiety | −1.33 | 0.27 | −4.88 | <0.001 | −1.88 | −0.79 |
| Age | 0.60 | 0.30 | 2.02 | 0.048 | 0.01 | 1.19 |
| Gender (female) | 3.75 | 3.74 | 1.00 | 0.321 | −3.72 | 11.22 |
| AMD severity | ||||||
| intermediate (vs. early state) | 3.65 | 3.45 | 1.06 | 0.295 | −3.24 | 10.53 |
| Advance (vs. early stage) | 0.53 | 4.05 | 0.13 | 0.896 | −7.56 | 8.62 |
| Years from diagnosis | 0.57 | 0.34 | 1.64 | 0.106 | −0.12 | 1.27 |
| Distance visual acuity | 20.81 | 7.76 | 2.68 | 0.009 | 5.33 | 36.85 |
| Contrast Sensitivity | 16.92 | 7.98 | 2.12 | 0.038 | 0.99 | 32.85 |
SE: Spherical Equivalent; AMD: Age Macular Degeneration; CI: Confidence Interval. Values in bold means statistical significance.