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Table 2 Overview of the study samples used in this paper

From: The Four-Dimensional Symptom Questionnaire (4DSQ): a validation study of a multidimensional self-report questionnaire to assess distress, depression, anxiety and somatization

Study

Sample

n

% women

Mean age (SD)

A

general practice patients

2127

68

38.5 (11.5)

B

employees responding to a health survey

3852

9

43.9 (8.1)

C

employees with adjustment disorder

280

34

41.9 (8.1)

D

distressed general practice patients

55

53

40.4 (10.6)

E

anxious general practice patients

237

62

37.8 (12.4)

F

GP patients with minor or mild-major depression

178

74

44.8 (15.7)

G

social work clients

77

66

35.0 (8.3)

H

physiotherapy patients

382

61

40.7 (12.5)

I

GP patients with psychological problems

86

66

40.2 (10.0)

J

GP patients with psychological problems

129

58

42.5 (12.7)