Table 2.
Neuropsychological test performance on the CANTAB variables for patients with MDD, MDDA, and healthy comparison subjects (HC). Difference in mean scores is controlled for age, gender, and education level.
| MDD (n = 37) | MDDA (n = 24) | Healthy controls(n = 91) | Statistical analyses ANCOVA | ||||||
|---|---|---|---|---|---|---|---|---|---|
| M | SD | M | SD | M | SD | F | df | p | |
| SET-SHIFT | |||||||||
| ID/ED; stages completed | 8.4 | 1.6 | 8.3 | 0.9 | 8.7 | 0.7 | 1.399 | 2 | 0.250 |
| ID/ED; total errors adj. | 25.8 | 19.4 | 33.0 | 22.0 | 20.4 | 18.0 | 4.255 | 2 | 0.016* |
| WORKING MEMORY/UPDATING | |||||||||
| SWM; between errors | 25.1 | 17.9 | 27.8 | 18.1 | 16.3 | 15.1 | 4.658 | 2 | 0.011* |
| SWM; strategy | 32.3 | 6.0 | 33.1 | 5.4 | 30.8 | 6.0 | 1.764 | 2 | 0.175 |
| INHIBITION | |||||||||
| SST; SSRT last half | 189.1 | 64.9 | 202.5 | 74.5 | 180.1 | 50.4 | 1.785 | 2 | 0.171 |
| RT/PSYCHOMOTOR SPEED | |||||||||
| SST; RT on GO trials | 506.1 | 140.8 | 412.3 | 82.7 | 407.7 | 123.7 | 3.701 | 2 | 0.027* |
*p < 0.05.