Table 1 Demographic and cognitive characteristics of the elderly
Behavioral sample (n = 5126) | MRI subsample (n = 1117) | |
|---|---|---|
Demographic | ||
Sex (female, %) | 3202 (62.5%) | 740 (66.2%) |
Age (years) | 66.26 ± 6.04 | 65.64 ± 5.87 |
Disease Number | ||
0 | 1498 (29.2%) | 217 (19.4%) |
1 | 1641 (32.0%) | 345 (30.9%) |
2 | 1084 (21.1%) | 282 (25.2%) |
≥ 3 | 903 (17.7%) | 273 (24.5%) |
Cognitive State | ||
Mild Cognitive Impairment | 1052 (20.52%) | 174 (15.6%) |
Normal Cognition | 4074 (79.48%) | 943 (84.4%) |
Lifetime Intellectual Cognitive Reserve | 0.13 ± 0.74 | 0.17 ± 0.71 |
Early-Years of Education | 10.68 ± 3.40 | 11.51 ± 3.03 |
Middle-Occupational Complexity | 6.48 ± 3.91 | 6.61 ± 4.00 |
Later-Mental Leisure Activity | 57.60 ± 22.52 | 58.07 ± 21.91 |
Cognitive Function | ||
Episodic Memory | 0.04 ± 0.69 | |
AVLT-N1N3 | 16.70 ± 4.86 | |
AVLT-N4 | 5.48 ± 2.42 | |
AVLT-N5 | 4.93 ± 2.56 | |
Language Ability | 0.17 ± 0.53 | |
CVFT-Animal | 16.86 ± 3.89 | |
CVFT-Vagetable | 14.21 ± 3.36 | |
CVFT-Fruit | 12.23 ± 2.88 | |
Executive Processing Ability | 0.19 ± 0.62 | |
TMT A time (s) | 62.14 ± 23.67 | |
TMT B-A time (s) | 110.05 ± 58.78 | |
SDMT | 31.26 ± 10.54 | |
DST-backward | 4.35 ± 1.30 | |
General Cognitive Ability | 0.10 ± 0.34 | |