TABLE 1.
Demographic characteristics of the study sample by groups.
| Parameter | New measures group | Established group | Group difference |
|---|---|---|---|
| Measure | Overall (N = 145) | Overall (N = 146) | p |
| Age | 0.7 | ||
| Mean (SD) | 70.1 (6.49) | 69.7 (6.43) | |
| Median [Min, Max] | 70.0 [59.0, 85.0] | 70.0 [60.0, 84.0] | |
| Missing | 0 (0%) | 1 (0.7%) | |
| Race | 0.7 | ||
| Asian | 4 (2.8%) | 6 (4.1%) | |
| Black or African–American | 17 (11.7%) | 12 (8.2%) | |
| Hispanic | 19 (13.1%) | 15 (10.1%) | |
| Other | 1 (0.7%) | 2 (1.4%) | |
| White | 104 (71.7%) | 109 (74.7%) | |
| Missing | 0 (0%) | 1 (0.7%) | |
| Education | 0.8 | ||
| Mean (SD) | 16.6 (2.69) | 16.6 (2.35) | |
| Median [Min, Max] | 16.0 [6.00, 24.0] | 16.0 [12.0, 27.0] | |
| Missing | 1 (0.7%) | 1 (0.7%) | |
| Gender | 0.5 | ||
| Male | 50 (34.5%) | 45 (30.8%) | |
| Female | 95 (65.5%) | 100 (68.5%) | |
| Missing | 0 (0%) | 1 (0.7%) | |
| WMS‐III Logical Memory II | 0.9 | ||
| Mean (SD) | 13.8 (3.29) | 13.8 (3.47) | |
| Median [min, max] | 14.0 [6.00, 21.0] | 14.0 [5.00, 22.0] | |
| Missing | 0 (0%) | 1 (0.7%) | |
| MCI group | 0.048 | ||
| eMCI | 24 (16.6%) | 38 (26.0%) | |
| Normal | 120 (82.8%) | 107 (73.3%) | |
| Missing | 1 (0.7%) | 1 (0.7%) | |
| APOE status | 0.11 | ||
| Non‐e4 carrier | 60 (70%) | 69 (80%) | |
| E4 carrier | 26 (30%) | 17 (20%) | |
| Unknown | 59 | 60 | |
Abbreviations: APOE, apolipoprotein; eMCI, early mild cognitive impairment; SD, standard deviation; WMS‐III, Wechsler Memory Scale‐ 3rd Edition.