Table 7.
Demographic characteristics of participants eligible for 6 years follow-up examination.
| SCI | P-value versus HC | MCI | P-value versus HC | SCI + MCI | HC | |
|---|---|---|---|---|---|---|
| N | 113 | 179 | 292 | 115 | ||
| Sex (male/female) | 49/64 | 0.512a | 73/106 | 0.729a | 122/170 | 44/71 |
| Age | 61.7 ± 7.3 | 0.001b | 64.2 ± 7.7 | 0.311b | 63.2 ± 7.7 | 64.4 ± 6.4 |
| Education (years) | 13.2 ± 3.6 | < 0.000b | 11.4 ± 3.4 | 0.418b | 12.1 ± 3.6 | 11.9 ± 3.0 |
| MMSE | 29.2 ± 0.9 | 0.074b | 28.1 ± 1.5 | <0.000b | 28.5 ± 1.4 | 29.3 ± 0.9 |
HC, healthy (cognitively normal) controls; MCI, mild cognitive impairment; MMSE, mini mental state examination; SCI, subjective cognitive impairment. Age, education years, and MMSE scores are given as mean ± s.d.
a
Chi-square test.
b
T-test.