Table 1.
Demographic and clinical characteristics of participants
| Characteristics | HC n = 25 | MDD n = 25 | Statistics | P-value |
|---|---|---|---|---|
| Gender ratio (female/male) | 17/8 | 18/7 | Chi2(1) = 0.095 | P = 0.758 |
| Mean movement per subject (mm) | 0.0044 | 0.0052 | t(48) = −0.77 | P = 0.445 |
| Age. Mean (SD) | 42.52 (11.18) | 42.82 (11.18) | t(48) = 0.097 | P = 0.923 |
| Rumination CERQ. Mean (SD) | 8.12 (2.27) | 10.04 (3.24) | t(48) = 2.420 | P = 0.019 |
| Current symptoms | ||||
| HAM-D. Mean (SD) | 0.04 (.20) | 0.88 (1.33) | t(48) = 4.203 | P = 0.000 |
| BDI. Mean (SD) | 1.12 (1.58) | 6.68 (6.42) | t(48) = 3.116 | P = 0.003 |
| Clinical characteristics | ||||
| No. of depressive episodes. Mean (SD) | – | 3.40 (2.02) | – | – |
| Illness duration, years. Mean (SD) | – | 12.40 (8.42) | – | – |
| Age at illness onset, years. Mean (SD) | – | 29.00 (11.57) | – | – |
| Time in remission, years. Mean (SD) | – | 6.04 (17.57) | – | – |
| Medication [subjects] | ||||
| Antidepressants | – | 7 | – | – |
| Mood stabilizers | – | 6 | – | – |
| Antipsychotics | – | 3 | – | – |
| None | 25 | 13 | – | – |
| Medication load. mean (SD) # | 0 | 1.64 (2.10) | – | – |
HAM-D, Hamilton Depression Rating Scale; BDI, Beck Depression Inventory.