Table 2.
Group differences in changes in BDD-YBOCS item severity over time
| ThTim | ThInt | ThDis | ThRes | ThCon | BeTim | BeDis | BeRes | BeCon | Avoid | Insig | |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||||
| Week 0 | 0.01 | −0.07 | 0.02 | 0.30 | 0.06 | −0.21 | −0.09 | 0.19 | −0.05 | −0.10 | 0.40 |
| Week 4 | −0.04 | −0.09 | 0.03 | −0.20 | −0.05 | −0.02 | −0.10 | −0.01 | −0.24 | −0.09 | 0.41 |
| Week 8 | −0.10 | −0.27 | 0.05 | −0.09 | −0.07 | −0.21 | −0.17 | −0.15 | −0.26 | −0.22 | 0.23 |
| Week 12 | −0.44 | −0.36 | −0.38 | −0.22 | −0.52 | −0.22 | −0.45 | −0.33 | −0.51 | −0.35 | 0.12 |
| Week 16 | −0.65 | −0.36 | −0.53 | −0.23 | −0.48 | −0.48 | −0.62 | −0.48 | −0.70 | −0.36 | 0.09 |
| Week 20 | −0.37 | −0.38 | −0.20 | 0.07 | −0.29 | −0.64 | −0.58 | −0.38 | −0.66 | −0.04 | −0.26 |
| Week 24 | −0.72 | −0.61 | −0.50 | −0.28 | −0.76 | −0.82 | −0.40 | −0.44 | −0.94 | −0.37 | −0.13 |
| Week 37 | −0.77 | −0.35 | −0.34 | −0.38 | −0.65 | −0.61 | −0.41 | −0.54 | −0.83 | −0.22 | −0.60 |
| Week 50 | −0.59 | −0.63 | −0.33 | −0.24 | −0.35 | −0.73 | −0.92 | −0.63 | −0.96 | −0.25 | −0.12 |
Note. Standardized change scores were computed at each week (e.g., week 0 to week 4 change in time occupied by BDD-related thoughts in the CBT and SPT groups respectively). Differences in changes between the two groups were then calculated. Values indicate the magnitude of difference between the groups, rather than the magnitude of change for any individual group. A value of 0 indicates that the CBT and SPT group exhibited the same degree of change. Positive values indicate that the SPT group reported larger declines in symptom severity from baseline than the CBT group. Negative values indicate that the CBT group reported larger declines in symptom severity from baseline than the SPT group. ThTim=time occupied by thoughts. ThInt=interference due to thoughts. ThDis=distress due to thoughts. ThRes=resistance of thoughts. ThCon=degree of control over thoughts. BeTim=time spent in repetitive behaviors related to body defects. BeDis=distress if repetitive behaviors are/were prevented. BeRes=resistance of repetitive behaviors. BeCon=degree of control over repetitive behavior. Insig=insight. Avoid=avoidance behavior/interference. Item 7 (interference in functioning due to repetitive behaviors) is not included given its redundancy with avoidance behavior.