Table 1.
Baseline characteristics of subjects in two stages.
| Characteristics | Mean (SD) or N (%) | |
|---|---|---|
| Stage I: ADNI-1 (N = 85) | Stage II: ADNI GO/2 (N = 374) | |
| Age (year) | 74.2 (6.9) | 71.2 (7.4) |
| Gender | ||
| Male | 61 (71.8) | 206 (55.1) |
| Female | 24 (28.2) | 168 (44.9) |
| Marital status | ||
| Married | 73 (85.9) | 278 (74.3) |
| Divorced | 2 (2.4) | 43 (11.5) |
| Others | 10 (11.8) | 53 (14.2) |
| Education | ||
| Medium | 0 (0.0) | 2 (0.5) |
| High | 85 (100.0) | 372 (99.5) |
| ApoEε4 | ||
| Absent | 36 (42.4) | 199 (53.2) |
| Present | 49 (57.7) | 175 (46.8) |
| ADAS-13 Trajectory Label | ||
| Low-risk | 44 (51.8) | 264 (70.6) |
| High-risk | 41 (48.2) | 110 (29.4) |
| MMSE Trajectory Label | ||
| High-risk | 50 (58.8) | 92 (24.6) |
| Low-risk | 35 (41.2) | 282 (75.4) |
| ADAS-13_bl | 30.3 (17.0) | 14.5 (6.4) |
| MMSE_bl | 27.5 (1.6) | 28.1 (1.7) |
| CDRSB_bl | 1.6 (0.9) | 1.4 (0.9) |
| Total | 85 | 374 |
ADAS-13, Alzheimer Disease Assessment Scale Cognitive 13 items; MMSE, mini mental state examination; ADAS-13_bl, Alzheimer Disease Assessment Scale Cognitive 13 items at Baseline; MMSE_bl, mini mental state examination at Baseline; CDRSB_bl, Clinical Dementia Rating Sum of Boxes at Baseline; SD, standard deviation.