Table 1.
Demographics of the Study Enrollees by Impairment Group
| Impairment Group | |||||
|---|---|---|---|---|---|
| Characteristic | No Impairment |
Vision Impairment Only |
Cognitive Impairment Only |
Vision and Cognitive Impairments |
p |
| N=82 (21.5%) |
N=51 (13.4%) |
N=102 (26.7%) |
N=147 (38.5%) |
||
| Age, y | 0.02 | ||||
| 60–69 | 15 (18.3) | 7 (13.7) | 7 (6.9) | 10 (6.8) | |
| 70–79 | 31 (37.8) | 20 (39.2) | 24 (23.5) | 46 (31.3) | |
| 80–89 | 30 (36.6) | 17 (33.3) | 50 (49.0) | 65 (44.2) | |
| 90–99 | 5 (6.1) | 7 (13.7) | 20 (19.6) | 26 (17.7) | |
| ≥100 | 1 (1.2) | 0 (0.0) | 1 (1.0) | 0 (0.0) | |
| Race/Ethnicity | 0.002 | ||||
| African American | 11 (13.4) | 8 (16.0) | 35 (34.3) | 45 (30.6) | |
| White | 71 (86.6) | 43 (84.3) | 67 (65.7) | 102 (69.4) | |
| Sex | 0.02 | ||||
| M | 22 (26.8) | 3 (5.9) | 17 (16.7) | 30 (20.4) | |
| F | 60 (73.2) | 48 (94.1) | 85 (83.3) | 117 (79.6) | |
| Education | <0.0001 | ||||
| Grade school | 3 (3.7) | 2 (3.9) | 37 (36.3) | 61 (41.5) | |
| Some high school | 24 (29.2) | 10 (19.6) | 21 (20.6) | 27 (18.4) | |
| High school graduate | 34 (41.5) | 19 (37.3) | 26 (25.5) | 41 (27.9) | |
| Some college | 11 (13.4) | 16 (31.4) | 14 (13.7) | 9 (6.1) | |
| College graduate | 6 (7.3) | 3 (5.9) | 2 (2.0) | 1 (0.7) | |
| Graduate or | 2 (2.4) | 1 (2.0) | 0 (0.0) | 1 (0.7) | |
| professional degree | |||||
| MMSE score* | -- | ||||
| 27–30 | 35 (42.7) | 15 (29.4) | 0 (0.0) | 0 (0.0) | |
| 24–26 | 47 (57.3) | 36 (70.6) | 0 (0.0) | 0 (0.0) | |
| 20–23 | 0 (0.0) | 0 (0.0) | 51 (50.0) | 50 (34.0) | |
| 16–19 | 0 (0.0) | 0 (0.0) | 28 (27.4) | 53 (36.0) | |
| 13–15 | 0 (0.0) | 0 (0.0) | 23 (22.5) | 44 (29.9) | |
| No. of medical conditions, mean (SD) | 5.9 (2.9) | 6.1 (2.9) | 5.2 (2.9) | 5.5 (3.1) | 0.24 |
*
Mini Mental State Exam (MMSE) score <24 indicates cognitive impairment