| Factor | R-Squared | β Coefficient | p-value |
| Age | 0.050 | −0.54 | 0.002 |
| Fundus: DISC CDR, (Normal) |
|
|
|
| Abnormal |
| −4.56 | 0.677 |
| Visual field (Normal) |
|
|
|
| Abnormal |
| −16.15 | 0.325 |