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Table 1 Group differences in demographic and clinical variables of the final sample (n = 110) and enrolled participants who were excluded (n = 93) at admission (t0)

From: Mechanisms of exposure and response prevention in obsessive-compulsive disorder: effects of habituation and expectancy violation on short-term outcome in cognitive behavioral therapy

 

final sample

enrolled but excluded

 

Variable

n

 

n

 

Test

Gender

110

63 f / 47 m

92

47 f / 45 m

p = .398

Comorbidity of mental disorder

110

88

93

61

p = .026

Psychotropic medication

110

62 none / 48 at least one

93

54 none / 39 at least one

p = .887

  

M (SD)

 

M (SD)

 

Age (years)

110

33.8 (10.8)

92

32.7 (10.0)

t(197.83) = 0.74, p = .463

Socioeconomic status

110

9.7 (3.8)

87

9.9 (3.7)

t(186.49) = −0.30, p = .761

Y-BOCS

110

23.4 (4.4)

91

23.3 (5.2)

t(177.85) = 0.17, p = .862

OCI-R

110

29.9 (13.2)

91

28.7 (11.8)

t(197.9) = 0.70, p = .484

MADRS

110

13.1 (7.0)

91

13.7 (9.0)

t(167.93) = −0.49, p = .624

BDI-II

110

19.5 (9.9)

91

18.6 (10.2)

t(189.54) = 0.60, p = .547

BSI-GSI

110

1.04 (0.54)

91

0.97 (0.59)

t(185.39) = 0.93, p = .356

GAF

110

56.0 (8.4)

89

54.5 (8.4)

t(188.73) = 1.25, p = .213

  1. Note. Comorbidity of mental disorder = at least one; Y-BOCS = Yale-Brown Obsessive-Compulsive Scale interview score; OCI-R = Obsessive Compulsive Inventory - Revised; MADRS = Montgomery-Åsberg Depression Rating Scale; BDI-II = Beck Depression Inventory II; BSI-GSI = Global Severity Index of the Brief Symptom Inventory; GAF = Global Assessment of Functioning; Socioeconomic status was assessed according to [52]