Table 4.
Mixed effects models testing treatment arm differences for therapist techniques used, accounting for participant and therapist effects.
| PI Items | CB Items | ||||
|---|---|---|---|---|---|
| Item | Estimate (99% CI) | Item | Estimate (99% CI) | ||
| Uncomfortable feelings | Intercept | 1.25 | Gives advice | Intercept | 2.07 |
| CBT | 0.32 (-0.36, 1.04) | CBT | 0.50 (-0.20, 1.21) | ||
| STPP | 1.77 (1.11, 2.44) | STPP | -1.75 (-2.43, -1.07) | ||
| Links to past | Intercept | 0.89 | Therapist initiates discussion | Intercept | 3.60 |
| CBT | -0.19 (-0.75, 0.38) | CBT | 0.36 (-0.19, 0.92) | ||
| STPP | 0.22 (-0.31, 0.78) | STPP | -1.69 (-2.23, -1.15) | ||
| Relationships | Intercept | 0.72 | Irrational beliefs | Intercept | 0.74 |
| CBT | 0.08 (-0.47, 0.63) | CBT | 1.58 (1.00, 2.21) | ||
| STPP | 0.98 (0.36, 1.51) | STPP | -0.37 (-1.00, 0.19) | ||
| Patient/therapist relationship | Intercept | 0.30 | Suggests activities | Intercept | 0.50 |
| CBT | 0.09 (-0.61, 0.77) | CBT | 1.91 (1.37, 2.40) | ||
| STPP | 1.95 (1.30, 2.59) | STPP | -0.46 (-0.94, 0.04) | ||
| Experience and express feelings | Intercept | 3.01 | Explains rationale | Intercept | 1.52 |
| CBT | 0.15 (-0.60, 0.89) | CBT | 1.25 (0.63, 1.91) | ||
| STPP | 1.37 (0.71, 2.04) | STPP | -1.08 (-1.76, -0.41) | ||
| Addresses avoidance | Intercept | 0.66 | Future life | Intercept | 1.20 |
| CBT | -0.07 (-0.65, 0.58) | CBT | 0.22 (-0.32, 0.75) | ||
| STPP | 0.88 (0.32, 1.43) | STPP | -0.24 (-0.82, 0.29) | ||
| Alternative understanding | Intercept | 2.55 | Provides information | Intercept | 3.33 |
| CBT | 0.05 (-0.87, 0.93) | CBT | 0.85 (0.11, 1.55) | ||
| STPP | 1.84 (0.94, 2.68) | STPP | -2.41 (-3.15, -1.74) | ||
| Recurrent patterns | Intercept | 1.13 | Suggests practice | Intercept | 0.23 |
| CBT | 0.38 (-0.31, 1.07) | CBT | 0.59 (0.21, 0.98) | ||
| STPP | 1.14 (0.46, 1.74) | STPP | -0.22 (-0.61, 0.17) | ||
| Patient initiates discussion | Intercept | 2.33 | Teaches techniques | Intercept | 0.40 |
| CBT | -0.28 (-0.79, 0.26) | CBT | 0.70 (0.24, 1.12) | ||
| STPP | 1.78 (1.28, 2.35) | STPP | -0.38 (-0.81, 0.04) | ||
| Wishes, dreams or memories | Intercept | 1.26 | Didactic | Intercept | 2.62 |
| CBT | 0.01 (-0.71, 0.67) | CBT | 1.06 (0.36, 1.77) | ||
| STPP | 0.51 (-0.15, 1.16) | STPP | -2.14 (-2.84, -1.45) | ||
Random intercept variance estimates not shown; reference group: BPI.