Table 1. Demographic characteristics of the Texas Alzheimer’s Research and Care Consortium (TARCC) and the Alzheimer’s Disease Neuroimaging Initiative (ADNI) cohorts.
| NC | MCI | AD | ||||
|---|---|---|---|---|---|---|
| Variable | TARCC N = 134 | ADNI N = 41 | TARCC N = 0 | ADNI N = 298 | TARCC N = 166 | ADNI N = 84 |
| Age, Mean (SD) | 70 (8.9) | 76 (5.8) | - | 75 (7.6) | 76 (8.5) | 76 (8.0) |
| Years of Education, Mean (SD) | 15 (2.6) | 16 (2.7) | - | 16 (2.9) | 14 (3.3) | 15 (3.1) |
| Race, N (%) | - | |||||
| White | 131 (97.8) | 41 (100) | - | 297 (99.7) | 165 (99.4) | 84 (100) |
| Other* | 3 (2.2) | 0 (0.0) | - | 1 (0.3) | 1 (0.6) | 0 (0.0) |
| Hispanic Ethnicity, N (%) | - | |||||
| Hispanic | 4 (3.0) | 0 (0.0) | - | 10 (3.4) | 4 (2.4) | 0 (0) |
| Non-Hispanic | 130 (97.0) | 41 (100) | - | 284 (95.3) | 162 (97.6) | 83 (98.8) |
| Unknown | 0 (0.0) | 0 (0.0) | - | 4 (1.3) | 0 (0.0) | 1 (1.2) |
| Gender, N (%) | - | |||||
| Female | 99 (73.9) | 21 (51.2) | - | 114 (38.3) | 107 (64.5) | 31 (36.9) |
| Male | 35 (26.1) | 20 (48.8) | - | 184 (61.7 | 59 (35.5) | 53 (63.1) |
| APOE4 Status, N (%) | - | |||||
| εX/ εX | 100 (74.6) | 39 (95.1) | - | 146 (49.0) | 66 (39.8) | 30 (35.7) |
| εX/ε4 and ε4/ε4 | 34 (25.4) | 2 (4.9) | - | 152 (51.0) | 100 (60.2) | 54 (64.3) |
* Other: ADNI = Asian; TARCC = Mixed race