Table 1.
Demographics and cognitive characteristics of subjects (N=126).
| Characteristics | Healthy controls (n=64) | Patients with mild cognitive impairment (n=62) | T, z, or chi-square test | P value | |
| Age (years), mean (SD) | 73.5 (16.0) | 82.00 (15.50) | –2.486a | .01 | |
| Sex, n (%) | 3.613b | .06 | |||
|
|
Female | 13.0 (20.3) | 22.0 (35.5) |
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|
|
|
Male | 51.0 (79.7) | 40.0 (64.5) |
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|
| Years of education, n (%) | 6.875b | .08 | |||
|
|
Primary school | 10.0 (15.6) | 4.0 (6.5) |
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|
|
|
Middle school | 13.0 (20.3) | 19.0 (30.6) |
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|
|
|
High school | 13.0 (20.3) | 20.0 (32.3) |
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|
|
|
University | 28.0 (43.8) | 19.0 (30.6) |
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|
| Computer experience ( having used a computer at least once), n (%) | 2.873b | .09 | |||
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Yes | 29.0 (45.3) | 19.0 (30.6) |
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|
|
|
No | 35.0 (54.7) | 43.0 (64.9) |
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|
| Cognitive assessment score, mean (SD) |
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|||
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|
Mini-Mental State Examination score (maximum score=30) | 28.5 (1.3) | 27.0 (1.6) | 5.668c | <.001 |
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|
Montreal Cognitive Assessment score (maximum score=30) | 26.6 (1.0) | 20.8 (2.7) | 16.106c | <.001 |
aMann-Whitney U test.
bChi-square test.
cIndependent samples t tests.