Table 2 Characteristics of the validation cohorts for performance validation of CSF-based model. Age and education are reported as mean(standard deviation)
From: Machine learning prediction of future amyloid beta positivity in amyloid-negative individuals
| Â | CN-cohort | MCI-cohort | ||
|---|---|---|---|---|
Baseline characteristics | Converter-CN | Stable-CN | Converter-MCI | Stable-MCI |
Sample size (N) | 67 (34%) | 131 (66%) | 211 (63%) | 126 (37%) |
ADNI1/ADNIGO/ ADNI2/ADNI3 | 32/0/31/4 | 57/0/73/1 | 145/9/48/19 | 41/40/45/0 |
Age, years | 76.2 (5.0) | 72.9 (5.4) | 74 (6.7) | 70.7 (7.1) |
Sex, M/F | 41/26 | 58/73 | 129/82 | 78/48 |
Education, years | 16.3 (2.7) | 16.4 (2.8) | 15.8 (2.8) | 16.0 (2.3) |
APOE4 (0/1/2) | 42/23/2 | 101/30/0 | 68/105/38 | 84/36/6 |
CN/SMC/EMCI/LMCI | 51/16/0/0 | 105/26/0/0 | 0/0/24/187 | 0/0/74/52 |