Table 2.
Demographic and clinical characteristics of the depressed and healthy adolescent participants from the longitudinal sample (N = 47).
| Characteristic | MDD adolescents n = 17 Mean (SD) |
Control adolescents n = 30 Mean (SD) |
p-Value (p < 0.05 for significance) |
|---|---|---|---|
| Age at first scan (years) | 15.42 (1.37) | 15.59 (1.47) | 0.690 |
| Range | 12.89–17.56 | 12.14–17.73 | |
| Age at second scan (years) | 16.07 (1.34) | 16.24 (1.46) | 0.695 |
| Range | 13.41–18.17 | 12.92–18.30 | |
| Gender (Male/Female) | 3/14 | 6/24 | 0.844 |
| Handedness (Edinburgh Handedness Inventory (46)) | 66.47 (41.82) | 67.30 (55.26) | 0.954 |
| IQ (from 5 patients, 30 controls) | 98.60 (14.40) | 101.67 (11.15) | 0.669 |
| SMFQ score at first scan | 16.71 (4.90) | 2.57 (1.81) | 7.46 × 10^− 10 |
| SMFQ score at second scan | 8.88 (5.12) | 2.37 (1.85) | 7.62 × 10^− 5 |
| STAI State score at first scan | 48.24 (11.33) | 28.90 (6.91) | 1.63 × 10^− 6 |
| STAI State score at second scan | 35.59 (10.13) | 26.10 (10.48) | 0.002 |
| STAI Trait score at first scan | 61.94 (9.08) | 30.50 (6.91) | 1.44 × 10^− 12 |
| STAI Trait score at second scan | 44.12 (10.48) | 28.37 (6.49) | 1.00 × 10^− 5 |