Table 1.
Clinical characteristics.
| Characteristics | BD Mean (SD) | HC Mean (SD) | Statistical evaluation | df | P-value |
|---|---|---|---|---|---|
| Sample, No | 57 | 57 | |||
| Sex, No | |||||
| Male | 22 | 17 | χ2 = 0.974 | 1 | 0.32 |
| Female | 35 | 40 | |||
| Age, years | 48.6 (15.1) | 49.3 (19.0) | t = −0.235 | 112 | 0.82 |
| Age of onset, years | 36.7 (10.0) | ||||
| Disease duration, years | 11.9 (8.1) | ||||
| Treatment duration, years | 4.5 (2.7) | ||||
| HRS-D, scores | 21.0 (3.7) |
BD, bipolar disorder; F, analysis of variance; HRS-D, Hamilton's Rating Scale for Depression; HC, healthy controls; t, Student's t-test; χ2, Pearson's chi-square test.