Table 4 Factor loadings of the K-BDRS.

13. Suicidal ideation

.794

−.077

.064

14. Guilt

.726

−.097

.015

11. Worthlessness

.628

.156

−.053

12. Helplessness

.603

.324

−.032

8. Anxiety

.578

.128

.213

1. Depression

.553

.287

.060

17. Lability

.500

−.357

.392

2. Sleep disturbance

.393

−.074

−.002

10. Flattened affect

−.289

.952

.235

6. Reduced motivation

.250

.621

−.194

5. Activity/energy reduction

.296

.619

−.140

9. Anhedonia

.272

.593

−.026

4. Social impairment

.302

.410

−.135

7. Reduced concentration

.266

.405

−.014

3. Appetite disturbance

.191

.213

.196

18. Increased motor drive

−.192

.049

.840

19. Increased speech

−.040

−.086

.797

20. Agitation

.196

.287

.574

15. Psychotic symptoms

−.015

.412

.560

16. Irritability

.380

−.322

.395