Table 4. Clinical scales before and after CBT according to treatment modality, including modality x time interaction.
| Global mean (SD) [95% confidence interval] | ||||||
|---|---|---|---|---|---|---|
| Scale/treatment modality | Before CBT | After CBT | p-value | Before CBT | After CBT | p-value between modalities |
| CGI | ||||||
| Individual | 4.92 (0.24) | 2.88 (0.39) | < 0.001 | 4.7 (0.17) [4.36-5.04] | 2.89 (0.24) [2.41-3.37] | 0.33 |
| Group | 4.48 (0.24) | 2.92 (0.29) | < 0.001 | |||
| SPIS | ||||||
| Individual | 28.4 (2.12) | 16.59 (2.42) | < 0.001 | 26.11 (1.55) [23.05-29.16] | 16.08 (1.79) [12.57-16.59] | 0.22 |
| Group | 23.81 (2.27) | 16.59 (2.63) | < 0.001 | |||
| BDI | ||||||
| Individual | 18.34 (2.41) | 11.76 (2.31) | < 0.001 | 16.87 (1.47) [10.69-19.41] | 12.31(1.49) [9.38-15.23] | 0.59 |
| Group | 15.4 (1.69) | 12.85 (1.81) | < 0.001 | |||
| HAM-A | ||||||
| Individual | 27.6 (2.91) | 17.88 (2.82) | < 0.001* | 27.6 (2.91) [21.89-33.31] | 17.88 (2.82) [12.35-23.40] | 0.01† |
| Group | 30.7 (2.47) | 27.33 (2.29) | 0.014 | 30.70 (2.47) [25.85-35.54] | 27.38(2.29) [22.88-31.87] | |
| PI | ||||||
| Individual | 1.71 (0.28) | 0.74 (0.18) | < 0.001 | 1.55 (0.16) [1.23-1.86] | 0.63 (0.11) [0.41-0.86] | 0.76 |
| Group | 1.38 (0.16) | 0.52 (0.13) | < 0.001 | |||
BDI = Beck Depression Inventory; CBT = cognitive behavioral therapy; CGI = Clinical Global Impression; HAM-A = Hamilton Anxiety Scale; PI = Photographic Instrument; SD = standard deviation; SPIS = Skin Picking Impact Scale.
Data expressed as mean (standard deviation).
*
Bonferroni correction.
†
Statistically significant.