Table 2.
Characteristics and Test Battery Results for Safe and At-Risk Participants
| Safe |
At-risk |
||||
|---|---|---|---|---|---|
| nc | Mean (SD) or % | nd | Mean (SD) or % | p-value | |
| Demographics | |||||
| Age (years) | 29 | 79.4 (8.7) | 18 | 81.8 (8.4) | .57 |
| Sex, male | 29 | 59% | 18 | 39% | .19b |
| Mild cognitive impairment | 29 | 10% | 18 | 44% | .008b |
| Vision tests | |||||
| Visual acuity (logMAR) ↓ | 29 | 0.10 (0.12) | 18 | 0.11 (0.09) | .89 |
| Contrast sensitivity (log units) ↑ | 28 | 1.61 (0.13) | 15 | 1.55 (0.10) | .10 |
| Cognitive tests | |||||
| MMSE (points) ↑ | 29 | 28.14 (1.55) | 18 | 26.22 (3.02) | .03 |
| MoCA (points) ↑ | 25 | 25.60 (2.18) | 15 | 21.20 (5.67) | .003 |
| Trail making tasks (s) ↓ | |||||
| Part A | 28 | 38.82 (9.13) | 18 | 45.94 (14.24) | .11 |
| Part B | 27 | 103.85 (48.33) | 16 | 147.00 (62.24) | .02 |
| Attention tests | |||||
| MOT (°/s) ↑ | 29 | 9.54 (3.83) | 18 | 7.53 (4.72) | .23 |
| UFOV tasks (ms) ↓ | |||||
| Subtest 1 | 29 | 23.83 (13.18) | 14 | 58.50 (76.13) | .06 |
| Subtest 2 | 29 | 139.62 (113.84) | 14 | 332.36 (148.81) | < .001 |
a
p-values based on the Wilcoxon rank-sum test unless otherwise noted.
b
p -values based on χ2 test.
c
Number of participants out of 29 who completed the test.
d
Number of participants out of 18 who completed the test.
↑
Higher scores indicate better performance.
↓
Higher scores indicate worse performance.