Table 1.
Sample characteristics
| MDD (n = 28) | HC (n = 28) | Test statistics | p Valuea | |
|---|---|---|---|---|
| Age, mean years (SD) | 32.2 (11.7) | 32.2 (10.5) | T(df=27) = 0 | >.99 |
| BMI, mean kg/m2 (SD) | 24.5 (3.4) | 23.9 (3.4) | T(df=27) = 1.32 | .20 |
| % Females (n) | 75 (21) | 75 (21) | Χ2(df=1) = 0 | >.99 |
| % Current smokers (n) | 25 (7) | 25 (7) | Χ2(df=1) = 0 | >.99 |
| MADRS, mean score (SD) | 25.3 (5.4) | 0.9 (1.4) | T(df=27) = 25.09 | <.01 |
| BDI-II, mean score (SD) | 30.3 (7.0) | 2.3 (3.1) | T(df=27) = 17.76 | <.01 |
| BAI, mean score (SD) | 21.9 (13.2) | 3.6 (3.1) | T(df=27) = 6.99 | <.01 |
| CTQ total score (SD) | 40.8 (15.5) | 35.1 (11.3) | T(df=27) = 1.42 | .17 |
| % MDD subtype (n) | 64.3 (18) | – | – | |
| % Melancholic (n) | 60.7 (17) | – | – | |
| % Atypical (n) | 3.7 (1) | – | – |
BAI, Beck Anxiety Inventory; BDI-II, Beck Depression Inventory II; BMI, body mass index; CTQ, Childhood Trauma Questionnaire; HC, healthy control; MADRS, Montgomery-Asberg Depression Rating Scale; MDD, major depressive disorder.
Unless specified otherwise, values represent mean (standard deviation).
a
Paired-samples t test for continuous and McNemar's test for dichotomous variables.