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Table 2 Pattern of factors after rotation. Values for items with greater weight and greater intercorrelation are highlighted in bold

From: Factor analysis of the Zung self-rating depression scale in a large sample of patients with major depressive disorder in primary care

Items

Factor I

Factor II

Factor III

Factor IV

18: Emptiness

0.81020

0.02694

-0.07882

-0.05805

14: Hopelessness

0.71806

-0.01248

0.00358

0.01279

17: Personal devaluation

0.66729

0.06068

-0.05545

-0.16968

19: Suicidal rumiation

0.59081

-0.05977

0.14953

0.05850

20: Dissatisfaction

0.56170

0.21835

-0.12945

0.11518

1: Depressed affect

0.48840

0.03523

0.27387

0.06180

6: Decreased libido

0.39334

0.11583

-0.11821

0.24162

12: Psychomotor retardation

-0.02329

0.76309

-0.01425

0.04242

11: Confusion

-0.00711

0.62654

0.10019

-0.00484

16: Indecisiveness

0.27074

0.35343

0.03434

-0.01957

10: Fatigue

0.12667

0.27508

0.18488

0.06714

13: Psychomotor agitation

-0.06231

0.07960

0.53666

0.01544

15: Irritability

0.01450

0.10047

0.52265

0.08437

3: Crying spells

0.38120

0.00120

0.33934

0.08437

4: Sleep disturbances

0.03951

0.01288

0.31263

0.20566

5: Decreased appetite

-0.00035

0.12560

-0.13281

0.55308

7: Weight loss

-0.04474

-0.02156

0.05212

0.53798

9: Tachycardia

0.13362

-0.07156

0.25808

0.26486