Background
Methods
Participants and design
M (SD)/% (N) | % (N) | ||
---|---|---|---|
Female gender | 59.2 (42) | Comorbid mental disorders | 83.1 (59) |
Age (years) | 34.59 (11.20) | Depressive disorders | 77.5 (55) |
High school degree | 56.3 (40) | Dysthymic disorder | 2.8 (2) |
In a relationship | 38.0 (27) | Anxiety disorders | 18.3 (13) |
OCD subtypes | Adjustment disorder | 2.8 (2) | |
F42.0 | 4.2 (3) | Somatoform disorders | 4.2 (3) |
F42.1 | 5.6 (4) | Eating disorders | 8.5 (6) |
F42.2 | 90.1 (64) | Personality disorders | 9.9 (7) |
Procedures
T1 | T2 | T3 | ||||
---|---|---|---|---|---|---|
M
|
SD
|
M
|
SD
|
M
|
SD
| |
Y-BOCS | 24.82 | 5.96 | 19.82 | 7.37 | 16.99 | 7.50 |
OBQ - Global | 4.41 | 1.17 | 4.15 | 1.17 | 3.80 | 1.12 |
OBQ-RES | 4.78 | 1.69 | 4.55 | 1.61 | 4.25 | 1.59 |
OBQ-PER | 4.87 | 1.34 | 4.66 | 1.30 | 4.24 | 1.20 |
OBQ-IMP | 3.37 | 1.62 | 3.04 | 1.54 | 2.60 | 1.26 |
BDI-II | 21.76 | 10.47 | 14.35 | 11.47 |
Treatment
Measures
Yale-Brown Obsessive Compulsive Scale
Beck Depression Inventory-II
Obsessive Beliefs Questionnaire
Data analyses
Results
Regression analyses
∆R
2
| ∆F
|
p
|
B
|
SE B
|
β
|
t
|
p
| |
---|---|---|---|---|---|---|---|---|
Step 1 | .27 | 26.03 | < .001 | |||||
Y-BOCS T1 | 0.66 | 0.13 | .52 | 5.10 | < .001 | |||
Step 2 | .01 | 0.71 | .40 | |||||
Y-BOCS T1 | 0.63 | 0.13 | .50 | 4.77 | < .001 | |||
BDI-II T1 | 0.06 | 0.08 | .09 | 0.85 | .40 | |||
Step 3 | .06 | 5.64 | .02 | |||||
Y-BOCS T1 | 0.61 | 0.13 | .49 | 4.77 | < .001 | |||
BDI-II T1 | 0.05 | 0.07 | .07 | 0.73 | .47 | |||
OBQ-Global ∆T1-T2 | -1.89 | 0.80 | -.24 | -2.38 | .02 |
∆R
| ∆F
|
p
|
B
|
SE B
|
β
|
t
|
p
| |
---|---|---|---|---|---|---|---|---|
Step 1 | .27 | 26.03 | < .001 | |||||
Y-BOCS T1 | 0.66 | 0.13 | .52 | 5.10 | < .001 | |||
Step 2 | .01 | 0.71 | .40 | |||||
Y-BOCS T1 | 0.63 | 0.13 | .50 | 4.77 | < .001 | |||
BDI-II T1 | 0.06 | 0.08 | .09 | 0.85 | .40 | |||
Step 3 | .08 | 2.68 | .05 | |||||
Y-BOCS T1 | 0.60 | 0.13 | .48 | 4.46 | < .001 | |||
BDI-II T1 | 0.08 | 0.08 | .11 | 1.03 | .31 | |||
OBQ-RES ∆T1-T2 | 0.34 | 0.68 | .06 | 0.50 | .62 | |||
OBQ-PER ∆T1-T2 | -1.18 | 0.86 | -.17 | -1.37 | .18 | |||
OBQ-IMP ∆T1-T2 | -1.16 | 0.67 | -.20 | -1.74 | .09 |
Mediation analyses
Step | Path | Predictor variable | Outcome variable |
B
|
SE B
|
t
|
p
|
---|---|---|---|---|---|---|---|
1 |
c
| Time | Y-BOCS | -3.92 | 0.38 | -10.41 | < .001 |
2 |
a
| Time | OBQ - Global | -0.32 | 0.05 | -6.94 | < .001 |
3 |
b
| OBQ - Global | Y-BOCS | 1.77 | 0.54 | 3.27 | .001 |
c'
| Time | Y-BOCS | -3.35 | 0.40 | -8.29 | < .001 |