Table 4.
Comparison of effect sizes by group CBT
| Completers analyses | ITT | ||||||||||||||
| Study | Heimberg (1998) | Stangier (2003) | Present study | Mörtberg (2007) | Present study | ||||||||||
| Group | 12 weeks | 15 weeks | 16 weeks | 3 weeks | 16 weeks | ||||||||||
| N | 36 | 26 | 57 | 35 | 57 | ||||||||||
| Drop out (%) | 22.2 | 15.4 | 12.3 | 25.7 | 12.3 | ||||||||||
| Pre | Post | ES | Pre | Post | ES | Pre | Post | ES | Pre | Post | ES | Pre | Post | ES | |
| LSAS total | 59.0 | 46.2 | 0.97 | 77.2 | 58.5 | 0.71 | 68.1 | 52.5 | 0.75 | 76.2 | 59.6 | 0.65 | |||
| SD | 13.2 | 8.9 | 26.1 | 27.8 | 20.9 | 19.4 | 25.6 | 27.3 | |||||||
| Social fear | 15.1 | 12.0 | 0.44 | 20.1 | 17.3 | 0.41 | 20.0 | 17.5 | 0.37 | ||||||
| SD | 7.0 | 4.9 | 6.8 | 7.2 | 6.9 | 7.2 | |||||||||
| Social avoidance | 13.1 | 9.9 | 0.42 | 18.4 | 14.2 | 0.53 | 18.1 | 14.3 | 0.47 | ||||||
| SD | 7.7 | 4.8 | 7.8 | 8.5 | 7.9 | 8.5 | |||||||||
| Performance fear | 17.0 | 13.4 | 0.65 | 20.9 | 15.9 | 0.83 | 20.8 | 16.3 | 0.78 | ||||||
| SD | 5.6 | 3.8 | 6.1 | 7.2 | 5.8 | 6.9 | |||||||||
| Performance avoidance | 13.8 | 10.9 | 0.47 | 17.2 | 11.1 | 0.80 | 17.3 | 11.5 | 0.71 | ||||||
| SD | 6.0 | 4.3 | 8.3 | 8.0 | 8.2 | 7.9 | |||||||||
| FQ-spa | 19.0 | 14.7 | 0.60 | 24.2 | 16.9 | 1.19 | 20.7 | 15.5 | 0.78 | 24.0 | 17.8 | 1.01 | |||
| SD | 7.2 | 4.0 | 6.2 | 8.1 | 6.7 | 7.1 | 6.2 | 7.8 | |||||||
| SPS | 27.3 | 25.8 | 0.09 | 33.6 | 25.5 | 0.53 | 36.7 | 24.0 | 0.83 | 36.5 | 27.7 | 0.64 | 36.2 | 24.7 | 0.75 |
| SD | 17.0 | 10.0 | 15.3 | 15.3 | 15.4 | 15.3 | 13.8 | 11.5 | 15.4 | 15.2 | |||||
| SIAS | 41.8 | 39.4 | 0.13 | 45.8 | 38.4 | 0.53 | 54.9 | 41.8 | 0.89 | 44.5 | 36.7 | 0.48 | 54.8 | 43.0 | 0.79 |
| SD | 18.4 | 13.2 | 14.0 | 12.4 | 14.8 | 15.6 | 16.1 | 14.7 | 15.0 | 16.0 | |||||
| FNE | 22.3 | 21.4 | 0.12 | 24.3 | 20.8 | 0.68 | 22.5 | 21.5 | 0.15 | 24.6 | 22.1 | 0.49 | |||
| SD | 7.6 | 4.3 | 5.2 | 6.5 | 6.5 | 7.2 | 5.1 | 6.5 | |||||||
FQ-spa: Fear Questionnaire Social Phobia Subscale