Table 1.
Characteristics of the Study Population by Categories of Self-Rated Vision Status Score
|
Vision Status Score |
Age-Adjusted
P
Value* |
|||
|
0–4,
N
= 128 |
5–7,
N
= 774 |
8–10,
N
= 1565 |
||
| Demographics | ||||
| Mean age in y (SD) | 75.9 (5.7) | 74.3 (5.3) | 72.9 (4.8) | <0.001 |
| % Females | 62.5 | 60.1 | 55.5 | 0.05 |
| % Blacks | 32.8 | 26.9 | 24.4 | 0.02 |
| Mean y of education (SD) | 10.0 (3.7) | 10.9 (3.3) | 11.5 (3.4) | <0.001 |
| Health status | ||||
| Mean MMSE (SD) | 25.9 (3.0) | 26.9 (2.7) | 27.5 (2.4) | <0.001 |
| % Severe depression symptoms | 16.7 | 12.6 | 6.9 | <0.001 |
| Mean N of comorbidities (SD) | 2.7 (1.6) | 2.6 (1.7) | 2.2 (1.5) | <0.001 |
| Vision tests | ||||
| Mean logMar presenting visual acuity (SD) | 0.34 (0.49) | 0.07 (0.19) | −0.01 (0.13) | <0.001 |
| Mean contrast sensitivity, no. of letters (SD) | 28.7 (10.0) | 34.0 (3.9) | 35.5 (3.0) | <0.001 |
| Mean log stereo acuity (SD) | 2.4 (0.59) | 2.1 (0.55) | 1.8 (0.44) | <0.001 |
| Mean points missing bilateral visual field (SD) | 37.6 (28.3) | 29.5 (18.6) | 22.4 (14.5) | <0.001 |
| Mean activities of daily vision subscales (SD) | ||||
| Near vision | 62.2 (33.7) | 86.7 (17.1) | 96.0 (7.5) | <0.001 |
| Far vision | 68.7 (30.6) | 88.1 (15.7) | 96.1 (7.8) | <0.001 |
| Night driving | 41.8 (40.8) | 65.7 (32.7) | 82.5 (23.7) | <0.001 |
*
From an ordinal logistic regression model, including age and the characteristic of interest.