Table 1.
Participant characteristics of everyone screened
| Total Screened (N=3,739) n (%) |
Failed Screening (N=1,378) n (%) |
Passed Screening (N=2,361) n (%) |
p | |
|---|---|---|---|---|
| Age in years * | 72.6 (8.0) | 71.7 (9.0) | 73.1 (7.4) | <.001† |
| Sex at birth | .1222 | |||
| Female | 1756 (48%) | 645 (50%) | 1111 (47%) | |
| Male | 1902 (52%) | 652 (50%) | 1250 (53%) | |
| Ethnocultural group ** | .756‡ | |||
| Latinx | 146 (4%) | 49 (4%) | 97 (4%) | |
| Non-Latinx Asian | 67 (2%) | 20 (2%) | 47 (2%) | |
| Non-Latinx Black | 196 (5%) | 72 (6%) | 124 (5%) | |
| Non-Latinx White | 3170 (87%) | 1113 (87%) | 2057 (87%) | |
| Other | 62 (2%) | 26 (2%) | 36 (2%) | |
| Education (years) * | 15.9 (2.8) | 15.7 (3.0) | 16.0 (2.7) | .016† |
| Educational attainment group | .006‡ | |||
| ≤12 | 580 (16%) | 233 (18%) | 347 (15%) | |
| >12 | 3064 (84%) | 1050 (82%) | 2014 (85%) | |
| Diagnosis group | ||||
| CU | 1852 (51%) | 752 (60%) | 1100 (47%) | <.001‡ |
| MCI | 1171 (32%) | 319 (25%) | 852 (36%) | |
| AD | 592 (16%) | 184 (15%) | 408 (17%) | |
| Original ADNI cohort | ||||
| ADNI-1 | 1274 (34%) | 452 (33%) | 822 (35%) | <.001‡ |
| ADNI-GO | 377 (10%) | 234 (17%) | 143 (6%) | |
| ADNI-2 | 1232 (33%) | 409 (30%) | 823 (35%) | |
| ADNI-3 | 856 (23%) | 283 (21%) | 573 (24%) |
Note.
*
Mean (standard deviation) for continuous variables. N is the number of non-missing values.
**
P-values are derived from tests excluding the Others ethnocultural level.
Tests used:
†
Wilcoxon test
‡
Pearson test