Table 1.
Summary of demographic and clinical characteristics
|
MDD (n = 70) M (SD) |
HC (n = 54) M (SD) |
t / 2-value | p-value | Cohen’s d / φ | |
|---|---|---|---|---|---|
| Demographics | |||||
| Age (years) | 18.24 (3.75) | 18.50 (2.56) | −0.45 | .652 | 0.08 |
| Sex (%female) | 55 (78.57%) | 37 (68.52%) | 1.13 | .289 | 0.10 |
| Education (years) | 11.72 (3.56) | 12.79 (2.30) | −2.03 | .044 | 0.35 |
| Age of onset (years) | 17.22 (3.43) | ||||
| Clinical characteristics | |||||
| Duration of illness (month) | 15.35 (20.94) | ||||
| Course of medication (month) | 3.98 (6.06) | ||||
| Dosage of drug (Fluoxetine equivalence, mg/day) | 29.20 (16.19) | ||||
| HAMD | 18.69 (5.28) | 2.32 (2.23) | 20.06 | < .001 | 3.78 |
| Self-report scale score | |||||
| BDI | 31.49 (10.10) | 4.15 (3.95) | 18.63 | < .001 | 3.51 |
| SHAPS | 33.31 (6.74) | 19.77 (5.46) | 11.59 | < .001 | 2.19 |
| TEPS_T | 64.05 (15.35) | 87.76 (10.75) | −9.52 | < .001 | 1.77 |
| TEPS-AA | 12.18 (4.91) | 20.22 (2.96) | −10.56 | < .001 | 1.94 |
| TEPS-CA | 13.29 (5.32) | 17.87 (3.53) | −5.43 | < .001 | 1.00 |
| TEPS-AC | 20.05 (7.18) | 27.93 (4.73) | −6.93 | < .001 | 1.27 |
| TEPS-CC | 12.24 (5.06) | 17.17 (3.08) | −6.26 | < .001 | 1.15 |
Abbreviations: MDD major depressive disorder, HC healthy controls, BDI Beck Depression Inventory, HAMD Hamilton Depression Scale, SHAPS Snaith-Hamilton Pleasure Scale, TEPS Temporal Experience of Pleasure Scale, AA Abstract Anticipatory, CA Contextual Anticipatory, AC Abstract Consummatory; CC Contextual Consummatory