Table 3.
Adjusted Means and Changes Scores on Anxiety and Depression Measures According to Group, Comorbidity Status and Time
| Cognitive-Behavior Therapy | Cognitive Therapy | Behavior Therapy | |||||||
|---|---|---|---|---|---|---|---|---|---|
|
| |||||||||
| Time (or change) | No comorbidity M (SE) | Comorbidy M (SE) | t | No comorbidity M (SE) | Comorbidy M (SE) | t | No comorbidity M (SE) | Comorbidy M (SE) | t |
| State-Trait Anxiety Inventory (STAI-T) | |||||||||
| Pre | 36.2 (1.0) | 44.6 (2.2) | 12.34, p<.01 | 36.0 (1.1) | 50.8 (3.0) | 21.70, p<.01 | 38.4 (1.4) | 45.6 (2.9) | 5.08, p=.02 |
| Post | 33.7 (1.2) | 35.4 (2.3) | 0.42, p=.51 | 33.1 (1.3) | 47.2 (3.9) | 11.70, p<.01 | 33.5 (1.3) | 41.6 (3.4) | 4.86, p=.03 |
| FU6 | 33.2 (1.3) | 36.5 (2.8) | 1.17, p=.28 | 32.4 (1.2) | 46.1 (4.3) | 9.74, p<.01 | 32.9 (1.4) | 39.4 (2.8 | 4.37, p=.04 |
| Change Pre-Post | −2.5 | −9.2 | 2.45, p=.01 | −2.9 | −3.6 | 0.28, p=.78 | −4.9 | −4.0 | 0.27, p=.78 |
| Change Pre-FU6 | −3.0 | −8.1 | 2.28, p=.02 | −3.6 | −4.7 | 0.34, p=.74 | −5.5 | −6.2 | 0.24, p=.81 |
| Beck Depression Inventory (BDI) | |||||||||
| Pre | 9.0 (0.6) | 14.1 (1.9) | 6.67, p=.01 | 8.3 (0.8) | 15.4 (2.5) | 7.26, p<.01 | 8.4 (0.8) | 15.1 (2.2) | 8.62, p<.01 |
| Post | 5.1 (0.6) | 3.5 (0.7) | 2.88, p=.09 | 4.1 (0.7) | 10.6 (2.9) | 4.84, p=.03 | 4.0 (0.6) | 8.4 (2.3) | 3.29, p=.07 |
| FU6 | 4.5 (0.5) | 5.5 (1.1) | 0.82, p=.37 | 4.8 (0.7) | 11.4 (3.3) | 3.91, p=.05 | 4.2 (0.6) | 8.1 (1.3) | 7.30, p<.01 |
| Change Pre-Post | −3.9 | −10.6 | 3.59, p<.01 | −4.2 | −4.8 | 0.21, p=.84 | −4.4 | −6.7 | 1.07, p=.29 |
| Change Pre-FU6 | −4.5 | −8.6 | 1.90, p=.06 | −3.5 | −4.0 | 0.18, p=.86 | −4.2 | −7.0 | 1.24, p=.22 |
p < .05,
p < .01,
p < .001
Note. All means (standard errors) and change scores are adjusted for site effect. Error df = 317 for ISI and 150 for ISI Response and Remission.