Table 1.
Demographic and clinical characteristics of schizophrenia (SZ), bipolar disorder (BD), major depressive disorder (MDD), and healthy controls (HC).
| SZ N = 262 |
BD N = 104 |
MDD N = 101 |
HC N = 249 |
F/χ2 values | P values | |
|---|---|---|---|---|---|---|
| Demographic characteristics | ||||||
| Age | 34.40 (11.09) | 30.06 (9.88) | 32.37 (9.26) | 33.52 (11.69) | 2.871a | 0.036 |
| Sex, Female | 152 (58.0%) | 64 (61.5%) | 82 (81.2%) | 154 (61.8%) | 18.652a | 0.001 |
| Years of Education | 11.74 (3.21) | 13.29 (3.21) | 13.11 (3.05) | 14.43 (3.56) | 27.483a | <0.001 |
| Clinical characteristics | ||||||
| Duration of Illness, Monthsc | 71.98 (86.19) | 59.02 (66.54) | 23.98 (45.45) | – | 12.262b | <0.001 |
| Age of First Episodec | 26.21 (8.46) | 25.34 (9.23) | 29.43 (10.10) | – | 5.805b | 0.03 |
| First Episode, Yesc | 110 (43.3%) | 39 (38.6%) | 78 (78.0%) | – | 41.147b | <0.001 |
| Medication, Yesc | 209 (80.1%) | 75 (72.1%) | 59 (58.4%) | – | 17.739b | <0.001 |
Data are n (%) or mean (SD).
HAMD, Hamilton Depression Scale; HAMA, Hamilton Anxiety Scale; YMRS, Young Rating Scale.
aIs the examination among SZ, BD, MDD, and HC; bis the examination among SZ, BD, and MDD; cis information that was missing for some participants.
The age and sex were not matched among SZ, BD, MDD, and HC. Clinical characteristics were significant differences in SZ, BD, and MDD.