Table 1.
Differences between teenagers with a major depressive disorder and their healthy peers.
| Depressed Adolescents (n = 63) | Healthy Controls (n = 46) | |||||
|---|---|---|---|---|---|---|
| χ² | p | |||||
| sex | 35 girls (56%) 28 boys (44%) |
22 girls (48%) 24 boys (52%) |
−0.7907 | 0.4249 | ||
| Me ± IQR | min.–max. | Me ± IQR | min.–max. | intergroup difference | p | |
| Age | 17 (4) | 15–19 | 17 (4) | 15–19 | z = −1.2844 | 0.1989 |
| Overall intellectual functioning TRS-Z (1–30) | 8 (6) | 2–19 | 9 (5) | 3–23 | z = −0.1601 | 0.8728 |
| Mood | ||||||
| CDI-2 self-rating (T score: 0–79) | 74 (8) | 54–79 | 47 (16) | 21–64 | z = −8.7064 | 0.0001 |
| CDI-2 assessed by mothers (T score: 0–79) | 75 (30) | 49–79 | 45 (37) | 23–60 | z = −8.64 | 0.0001 |
| ± SD | min.–max. | ± SD | min.–max. | intergroup difference | p | |
| BDI-II (raw score: 0–63) | 37 (8) | 20–53 | 8 (9) | 0–23 | t = 8.8702 | 0.0001 |
| Cognitive Flexibility | ||||||
| Me ± IQR | Me ± IQR | |||||
| The Brixton Spatial Anticipation Test (scaled score: 0–10) | 4.57 (1.94) | 1–10 | 6.98 (1.44) | 4–10 | z = 6.0568 | 0.001 |
BDI-II (The Beck Depression Inventory-II), CDI-2 (The Children’s Depression Inventory 2), IQR—interquartile range, Me—median, SD—standard deviation, TRS-Z (Word Comprehension Test—Advanced Version).