Table 1.
Descriptive statistics for dementia by age and gender (adopted from Open Access Series of Imaging Studies—OASIS, 2018).
| Non-Demented | Demented | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Age | N | n | Mean | Male | Female | n | Mean | Male | Female | CDR 0.5/1/2 |
| <20 | 19 | 19 | 18.53 | 10 | 9 | 0 | 0 | 0 | 0 | 0/0/0 |
| [20, 30) | 119 | 119 | 22.82 | 51 | 68 | 0 | 0 | 0 | 0 | 0/0/0 |
| [30, 40) | 16 | 16 | 33.38 | 11 | 5 | 0 | 0 | 0 | 0 | 0/0/0 |
| [40, 50) | 31 | 31 | 45.58 | 10 | 21 | 0 | 0 | 0 | 0 | 0/0/0 |
| [50, 60) | 33 | 33 | 54.36 | 11 | 22 | 0 | 0 | 0 | 0 | 0/0/0 |
| [60, 70) | 40 | 25 | 64.88 | 7 | 18 | 15 | 66.13 | 6 | 9 | 12/3/0 |
| [70, 80) | 83 | 35 | 73.37 | 10 | 25 | 48 | 74.42 | 20 | 28 | 32/15/1 |
| [80, 90) | 62 | 30 | 84.07 | 8 | 22 | 32 | 82.88 | 13 | 19 | 22/9/1 |
| [90, 100) | 13 | 8 | 91.00 | 1 | 7 | 5 | 92.00 | 2 | 3 | 4/1/0 |
| Total | 416 | 316 | n/a | 119 | 197 | 100 | n/a | 41 | 59 | 70/28/2 |
CDR—Clinical Dementia Rating.