Neuropsychological standardised z scores of the two study groups with mild cognitive impairment
| Cognitive function | Tests | Mayo Clinic (n = 170) | Karolinska Institutet (n = 133) |
|---|---|---|---|
| All values are mean (SD). | |||
| *p<0.05. | |||
| **p<0.01. | |||
| AVLT, Auditory Verbal Learning Test; WAIS-R, Wechsler Adult Intelligence Scale-Revised; WMS-R, Wechsler Memory Scale-Revised. | |||
| Verbal comprehension | WAIS-R: information | −0.36 (2.66) | −1.45 (1.04)* |
| WAIS-R: similarities | −0.01 (0.97) | −2.15 (0.98) | |
| Attention | WAIS-R: digit symbol | −0.04 (0.98) | −1.13 (0.96)* |
| WAIS-R: digit span | −0.08 (2.33) | −4.01 (1.98)** | |
| Perceptual organisation | WAIS-R: block design | −0.21 (1.03) | −0.24 (0.90)* |
| Learning and memory | WMS-R: logical memory (immediate story recall) | −0.39 (2.00) | −6.45 (1.25)** |
| AVLT: learning over trials | −1.56 (1.65) | −1.25 (1.35)* | |
| Retention | WMS-R: logical memory (delayed story recall) | −1.90 (2.70) | −2.3 (1.7)** |
| AVLT: delayed recall | −1.03 (1.52) | −2.3 (1.9)** | |