Table 3.
Group characteristics for major depression disorder (MDD). SD: standard deviation.
| MDD patients | Healthy controls | Statistical comparison | |
|---|---|---|---|
| Participants | n = | n = | |
| Entire group | 102 | 106 | |
| Göttingen | 49 | 51 | |
| Aachen | 30 | 30 | |
| Munich | 23 | 25 | |
| Sex | Male/female | Male/female | Chi2 |
| Entire group | 49/53 | 51/55 | 0.9915 |
| Göttingen | 27/22 | 29/22 | 0.8593 |
| Aachen | 11/19 | 11/19 | 1.0000 |
| Munich | 11/12 | 11/14 | 0.7904 |
| Age | Mean ± SD | Mean ± SD | ttest/ranksum |
| Entire group | 37.75 ± 13.29 | 36.99 ± 12.92 | 0.6784/0.6356 |
| Göttingen | 34.00 ± 10.55 | 34.04 ± 10.92 | 0.9855/0.8306 |
| Aachen | 36.10 ± 12.21 | 36.10 ± 12.58 | 1.0000/0.8648 |
| Munich | 47.87 ± 15.14 | 44.08 ± 14.78 | 0.3849/0.4029 |