Table 1.
Clinical characteristics of participants
| Controls | ECT patients | ||||
|---|---|---|---|---|---|
| All | Remitters | Nonremitters | P-value | ||
| Number | 20 | 25 | 18 | 7 | |
| Age (years) | 63.3 (7.3) | 67.1 (8.3) | 66.3 (9.6) | 69.1 (3.0) | 0.46 |
| Female (%) | 13 (65.0) | 18 (72.0) | 14 (77.8) | 4 (57.1) | 0.36 |
| Bipolar disorder (%) | 5 (20.0) | 3 (16.7) | 2 (28.6) | 0.60 | |
| Psychotic features (%) | 17 (68.0) | 12 (66.7) | 5 (71.4) | 1.00 | |
| Family history (%) | 10 (40) | 6 (33.3) | 4 (57.1) | 0.66 | |
| Duration of the current episode (month) | 6.0 (3.0–11.0) | 8.0 (3.0–14.5) | 4.0 (2.0–5.0) | 0.09 | |
| Illness duration (year) | 5.0 (1.13–19.5) | 4.0 (1.19–13.5) | 28.0 (0.75–47.0) | 0.25 | |
| Number of ECT | 10.8 (1.5) | 10.6 (1.4) | 11.4 (1.6) | 0.19 | |
| Charge (mC) | 289.1 (86.6) | 283.1 (90.7) | 304.7 (79.3) | 0.59 | |
| EEG seizure (seconds) | 41.3 (12.9) | 43.6 (14.1) | 35.3 (6.8) | 0.15 | |
| Time between TP1 and TP2 (days) | 38.3 (8.1) | 39.1 (7.0) | 39.2 (7.6) | 38.9 (5.7) | 0.91 |
| Baseline HAMD-17 | 1.1 (1.3) | 33.0 (7.1) | 32.1 (7.4) | 35.3 (6.1) | 0.33 |
| Baseline MMSE | 28.9 (1.3) | 25.8 (3.2) | 27.0 (2.2) | 23.3 (3.8) | 0.009 |
Each variable is described as mean (SD) for continuous variable
Duration of the current episode and Illness duration are described as median (IQR) because of non-normal distribution
The p-values were the results of comparisons between remitters and nonremitters