Table 3 Comparison of cognitive scores of healthy controls, cognitively preserved, and impaired patient groups.
Cognitive tests, adjusted mean scores (SE) | Healthy controls (n = 44) | Cognitively preserved patients (n = 50) | Patients with cognitive impairment (n = 23) |
|---|---|---|---|
Verbal memory | |||
immediate recall | −0.38 (0.21) | −0.33 (0.18) | −1.36 (0.22)**,## |
delayed recall | −0.27 (0.19) | −0.19 (0.17) | −1.11 (0.21)**,### |
recognition | −0.28 (0.3) | −0.07 (0.26) | −1.32 (0.32)## |
Visuospatial function | |||
RCFT copy score | −0.01 (0.24) | −0.07 (0.21) | −1.29 (0.26)**,## |
Visual memory | |||
immediate recall | −0.21 (0.21) | −0.21 (0.18) | −2.45 (0.22)***,### |
delayed recall | −0.19 (0.21) | −0.35 (0.19) | −2.61 (0.23)***,### |
K−WAIS symbol digit modalities test | −0.41 (0.19) | −0.69 (0.17) | −1.62 (0.21)***,## |
Digit Span | |||
forward | −0.19 (0.2) | 0.07 (0.17) | −0.84 (0.22)## |
backward | 0.03 (0.17) | −0.3 (0.15) | −0.92 (0.18)**,# |
Stroop test | |||
simple | −0.22 (0.23) | −0.3 (0.2) | −1.26 (0.25)**,## |
interference | −0.24 (0.26) | −0.67 (0.23) | −2.03 (0.28)***,## |
COWAT | −0.42 (0.2) | −0.28 (0.17) | −1.65 (0.21)***,### |
PASAT | −0.43 (0.26) | −0.6 (0.23) | −3.02 (0.29)***,### |
Global z−score (sum of subtest scores) | −3.21 (1.44) | −3.99 (1.25) | −21.49 (1.56)***,### |
