Table 1.
Overview of the study sample, neurocognitive scores and MRI findings.
| Characteristics | TGA (+) |
TGA (−) |
p |
|---|---|---|---|
| n = 20 | n = 20 | ||
| Age (years), M (SD) | 69.9 (5.7) | 68.2 (6.4) | ns1 |
| Women (%) | 70 | 65 | ns2 |
| Higher education entrance qualification (%) | 30 | 35 | ns2 |
| Years between TGA and assessment, M (IR) | 6.45 (7) | ||
| MMSE (0–30), M (SD) | 27.90 (1.86) | 28.90 (0.85) | 0.0381 |
| MMSE, delayed recall (0–3), M (SD) | 1.60 (1.95) | 1.95 (0.88) | ns1 |
| VVM path 1, immediate recall (0–31), M (SD) | 14.45 (4.92) | 17.05 (6.21) | ns1 |
| VVM path 2, delayed recall (0–31), M (SD) | 13.65 (5.82) | 14.40 (6.41) | ns1 |
| CVLT, immediate free recall (0–36), M (SD) | 27.60 (4.68) | 26.65 (4.09) | ns1 |
| CVLT, delayed free recall (0–9), M (SD) | 6.55 (1.95) | 6.95 (1.31) | ns1 |
| Episodic autobiographical memory (0–38), M (SD) | 32.55 (5.25) | 32.95 (3.69) | ns1 |
| Human Water Maze, path length measure | F2,12 = 5.04 | 0.0323 | |
| Human Water Maze, latency measure | F2,12 = 1.73 | ns3 | |
| White matter hyperintensities, Median (IR) | 1 (1) | 1 (1) | ns4 |
| (Fazekas-scale 0–3) | |||
| Left Medial temporal lobe atrophy, Median (IR) | 1 (0) | 1 (0) | ns4 |
| Right Medial temporal lobe atrophy, Median (IR) | 1 (0) | 1 (0) | ns4 |
| (Scheltens-scale 0–4) |
Abbreviations: TGA (+) = patients with a history of TGA; TGA (−) = healthy controls; M = mean; SD = standard deviation of the mean; IR = interquartile range; ns = not significant; MMSE = Mini Mental State Examination, VVM = Visual and Verbal Memory Test; CVLT = California Verbal Learning Test.
With exception of the MMSE and path length measure (Human Water Maze), groups did not differ concerning the presented characteristics as revealed by two-sample t-tests1, chi-square tests2, variance analysis3 and Mann-Whitney-U-tests4.