Table 1 Descriptive statistics for the demographic variables, general cognitive and functional scales, and the neuropsychological and experimental tasks drawn from baseline assessments (HOA healthy older adults, aMCI amnestic MCI, maMCI multi-domain amnestic MCI, naMCI non-amnestic MCI; see text for description)
From: Memory markers in the continuum of the Alzheimer’s clinical syndrome
HOA (n=42) | eMCI (n=31) | MCI non-converter (n=39) | MCI converter (n=38) | |||||
|---|---|---|---|---|---|---|---|---|
M (SD) | Range | M (SD) | Range | M (SD) | Range | M (SD) | Range | |
Age | 73.50 (5.37) | 62.00–86.00 | 75.71 (7.17) | 61.00–90.00 | 75.33 (6.57) | 64.00–88.00 | 77.08 (8.24) | 58.00–97.00 |
Education | 16.19 (4.14) | 10.00–33.00 | 14.87 (3.52) | 10.00–23.00 | 12.21 (3.61) | 9.00–25.00 | 13.82 (4.20) | 9.00–25.00 |
Total ACE-R | 96.12 (3.44) | 87.00–100.00 | 92.58 (5.61) | 80.00–100.00 | 81.74 (7.64) | 66.00–97.00 | 76.21 (9.45) | 54.00–91.00 |
TOPF | 63.58 (6.50) | 34.00–70.00 | 60.16 (10.07) | 32.00–69.00 | 49.55 (14.46) | 18.00–69.00 | 52.23 (11.70) | 31.00–69.00 |
IADL | 7.64 (0.81) | 5.00–8.00 | 7.33 (1.23) | 5.00–8.00 | 6.39 (1.89) | 1.00–8.00 | 5.93 (1.54) | 3.00–8.00 |
HVLT delayed | 9.45 (1.47) | 7.00–12.00 | 5.65 (3.72) | 0.00–12.00 | 3.68 (3.94) | 0.00–17.00 | 1.76 (2.41) | 0.00–9.00 |
HVLT total | 27.26 (4.01) | 17.00–36.00 | 22.71 (6.24) | 11.00–35.00 | 15.45 (5.23) | 6.00–26.00 | 13.63 (4.04) | 6.00–23.00 |
HVLT recognition | 11.43 (0.78) | 9.00–12.00 | 9.81 (2.12) | 4.00–12.00 | 7.94 (2.71) | 0.00–12.00 | 7.66 (2.91) | 1.00–12.00 |
Rey figure (copy) | 34.46 (1.93) | 29.00–36.00 | 27.87 (11.69) | 0.00–36.00 | 28.77 (8.21) | 0.00–36.00 | 28.06 (9.86) | 0.00–36.00 |
Rey figure (immediate recall) | 19.79 (7.67) | 8.00–34.00 | 15.03 (9.16) | 0.00–32.00 | 10.53 (7.61) | 0.00–27.00 | 7.36 (6.12) | 0.00–24.00 |
Rey figure (delayed recall) | 19.50 (7.26) | 7.00–34.00 | 14.95 (9.38) | 0.00–34.00 | 10.49 (7.88) | 0.00–26.00 | 5.71 (5.91) | 0.00–21.00 |
TMT-A | 43.29 (9.96) | 22.00–59.00 | 50.97 (19.38) | 25.00–103.00 | 66.00 (27.64) | 29.00–159.00 | 78.35 (41.55) | 35.00–252.00 |
TMT-B | 84.95 (27.63) | 34.00–163.00 | 107.45 (39.79) | 44.00–203.00 | 179.53 (101.07) | 72.00–547.00 | 196.67 (90.87) | 76.00–465.00 |
Letter fluency (FAS) | 50.81 (14.42) | 18.00–81.00 | 49.52 (12.00) | 19.00–81.00 | 31.57 (14.20) | 14.00–67.00 | 34.29 (16.58) | 6.00–74.00 |
Digit-symbol | 61.64 (13.43) | 36.00–83.00 | 54.61 (13.22) | 29.00–91.00 | 39.74 (12.52) | 14.00–62.00 | 34.35 (12.29) | 4.00–53.00 |
VSTMBT (recognition) | 0.75 (0.09) | 0.59–0.97 | 0.68 (0.08) | 0.53–0.78 | 0.64 (0.07) | 0.47–0.78 | 0.62 (0.10) | 0.41–0.81 |
FCSRT (free recall) | 27.43 (6.17) | 14.00–40.00 | 24.26 (7.83) | 12.00–38.00 | 15.05 (7.90) | 3.00–35.00 | 10.47 (6.58) | 1.00–24.00 |