Table 1.
Demographic characteristics of Hammers et al.’s (2020) development and the current amnestic MCI validation samples
| Variable | Current Validation Sample | Hammers et al., 2020 Development Sample | |
|---|---|---|---|
| Community Amnestic MCI | Clinic Amnestic MCI | ||
| Mean (SD) | Mean (SD) | Mean (SD) | |
| n | 64 | 58 | 129 |
| Age (years)1, 2 | 79.2 (7.9) | 74.1 (5.2) | 75.6 (7.5) |
| Education (years)1, 3 | 15.6 (2.6) | 17.0 (2.9) | 15.4 (2.7) |
| Gender (n; %)1, 2, 3 | |||
| Males | 21 (33%) | 38 (66%) | 22 (17%) |
| Females | 43 (67%) | 20 (36%) | 107 (83%) |
| Ethnicity (n) | |||
| Non-White, Non-Caucasian | 0 | 1 | 1 |
| White, Non-Hispanic | 64 | 57 | 128 |
| WRAT-4 Reading Subtest | 109.8 (10.8) | 107.2 (7.9) | 107.4 (7.6) |
| Baseline RBANS Indexes | |||
| Immediate Memory1, 2, 3 | 86.6 (13.6) | 76.9 (14.4) | 109.2 (14.5) |
| Visuospatial/Constructional3 | 100.4 (14.9) | 98.8 (11.4) | 105.2 (15.7) |
| Language1, 2, 3 | 98.3 (11.4) | 88.6 (10.5) | 104.6 (11.2) |
| Attention2, 3 | 95.9 (14.1) | 96.7 (14.9) | 104.4 (14.7) |
| Delayed Memory1, 2, 3 | 80.2 (12.7) | 69.7 (19.2) | 108.6 (9.1) |
| Total Scale1, 2, 3 | 89.2 (10.4) | 81.6 (11.3) | 109.2 (12.7) |
| Retest Interval (days)1, 3 | 398.5 (66.8) | 474.2 (49.5) | 381.5 (37.9) |
Note: MCI = Mild Cognitive Impairment, WRAT-4 = Wide Range Achievement Test,
1 =
significant difference between the current validation community amnestic MCI and clinic amnestic MCI samples, p < .01.
2 =
significant difference between the current validation community amnestic MCI sample and Hammers et al.’s development sample, p < .01.
3 =
significant difference between the current validation clinic amnestic MCI sample and Hammers et al.’s development sample, p < .01.