Table 1.
Demographic and clinical characteristics of the three groups
| Control, mean ± SD (N = 20) | Bipolar disorder, mean ± SD | Analysis | |||
|---|---|---|---|---|---|
| BP I (N = 22) | BP II (N = 29) | F/χ2 | P value | ||
| Age | 34.00 ± 12.34 | 34.05 ± 11.91 | 34.41 ± 12.19 | 0.009 | 0.991 |
| HDRS | - | 4.36 ± 2.73 | 5.90 ± 2.88 | 36.91 | <0.001 |
| YMRS | - | 1.86 ± 2.55 | 3.76 ± 2.66 | 17.22 | <0.001 |
| Illness duration | - | 10.40 ± 8.80 | 11.83 ± 11.78 | -0.42 | 0.676 |
| Educational level | 14.65 ± 2.35 | 13.05 ± 2.99 | 14.45 ± 3.09 | 2.067 | 0.134 |
| Male, N (%) | 8 (40.0%) | 9 (40.9%) | 15 (51.7%) | 0.88 | 0.644 |
BP = bipolar disorder; HDRS = Hamilton Depression Rating Scale; YMRS = Young Mania Rating Scale.