| Time 1 (N = 69) | Time 2 (N = 34) | Time 3 (N = 28) |
---|---|---|---|
Time between measurements (months) | - | 19.10 ± 1.62 | 18.43 ± .96 |
Baseline age (years) | 68.33 ± 7.95 | 67.41 ± 8.95 | 66.46 ± 9.52 |
Sex (female, male) | 56 F, 13M | 29 F, 5 M | 24 F, 4 M |
Racial identity (African American/white) | 54 / 15 | 25 / 9 | 20 / 8 |
Doctor seen for memory concerns | 19 Y, 50 N | 10 Y, 25 N | 3 Y, 25 N |
Family history of Alzheimer’s disease | 34 Y, 35 N | 19 Y, 15 N | 11 Y, 17 N |
Geriatric Depression Scale (GDS) | 3.82 ± 3.93 | 3.62 ± 3.70 | 3.71 ± 3.71 |
Beck Depression Inventory | 4.59 ± 4.12 | 6.71 ± 5.49 | 5.56 ± 3.66 |
Big Five Conscientiousness | 37.36 ± 5.48 | 37.35 ± 4.60 | 36.75 ± 4.56 |
Big Five Neuroticism | 17.41 ± 6.00 | 17.29 ± 5.39 | 17.89 ± 5.74 |
MFQ-FoF | 2.99 ± .91 | 2.95 ± .95 | 2.91 ± .79 |
MMSE | 28.32 ± 1.97 | 28.83 ± 1.16 | 28.86 ± 1.30 |
WASI Full IQ 4-Scale | 98.09 ± 11.45 | 101.87 ± 12.93 | 100.96 ± 13.03 |
Rey Auditory Total | 46.43 ± 9.31 | 48.90 ± 8.87 | 47.64 ± 10.03 |
WMS-IV Auditory Index | .47 ± .12 | .55 ± .11 | .54 ± .13 |
WMS-IV Visual Index | .54 ± .11 | .55 ± .12 | .57 ± .15 |
WMS-IV Visual Working Memory Index | .40 ± .12 | .42 ± .11 | .41 ± .15 |
WMS-IV Immediate Memory Index | .55 ± .10 | .58 ± .10 | .58 ± .12 |
WMS-IV Delayed Memory Index | .47 ± .11 | .51 ± .12 | .53 ± .14 |
Trail making task B/A ratio | 2.64 ± 1.25 | 2.34 ± .84 | 2.13 ± .87 |
Digit symbol substitution total | 39.78 ± 11.41 | 41.70 ± 10.89 | 43.86 ± 13.06 |
Stroop task ratio | 2.00 ± .47 | 1.91 ± .30 | 1.96 ± .41 |
Verbal fluency total | 36.55 ± 7.46 | 39.74 ± 7.82 | 38.04 ± 8.79 |