Table 4.
Mean ISI scores at pre-treatment, post-treatment, and 6-month follow-up for subgroups of interest and treatment effects on ISI changes from pre-treatment to 6-month follow-up
| High on Behavior & Low on Cognitive at Pre-Treatment (N = 40; 22%) | Effect of Treatment on ISI changes | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| CT | BT or CBT | |||||||||
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|
|
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| N | Mean | SD | N | Mean | SD | B | SE | p | ||
| ISI Pre | 16 | 16.88 | 4.03 | 24 | 15.88 | 2.97 | Post vs. Pre | −1.43 | 1.47 | 0.33 |
| ISI Post | 16 | 9.19 | 4.65 | 22 | 6.86 | 2.80 | FU6 vs. Pre | −0.64 | 1.59 | 0.69 |
| ISI FU6 | 11 | 9.91 | 4.97 | 22 | 8.27 | 5.04 | FU6 vs. Post | 0.79 | 1.60 | 0.62 |
| High on Cognitive & Low on Behavior at Pre-Treatment (N = 40; 22%) | Effect of Treatment on ISI changes | |||||||||
| BT | CT or CBT | |||||||||
|
|
|
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| N | Mean | SD | N | Mean | SD | B | SE | p | ||
|
| ||||||||||
| ISI Pre | 15 | 19.33 | 3.20 | 25 | 18.88 | 2.88 | Post vs. Pre | 0.64 | 1.70 | 0.71 |
| ISI Post | 12 | 8.17 | 5.27 | 21 | 8.57 | 4.68 | FU6 vs. Pre | −0.03 | 1.70 | 0.99 |
| ISI FU6 | 13 | 9.08 | 4.48 | 22 | 8.42 | 4.62 | FU6 vs. Post | −0.67 | 1.75 | 0.70 |
| High on Both Processes at Pre-Treatment (N = 53; 29%) | Effect of Treatment on ISI changes | |||||||||
| BT and CT | CBT | |||||||||
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|
|
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| N | Mean | SD | N | Mean | SD | B | SE | p | ||
|
| ||||||||||
| ISI Pre | 39 | 19.41 | 3.20 | 14 | 19.07 | 2.30 | Post vs. Pre | −2.94 | 1.52 | 0.053 |
| ISI Post | 38 | 10.24 | 4.97 | 13 | 6.85 | 3.44 | FU6 vs. Pre | −0.01 | 1.54 | 1.00 |
| ISI FU6 | 33 | 8.88 | 5.45 | 13 | 8.54 | 4.27 | FU6 vs. Post | 2.93 | 1.55 | 0.06 |
Note. Subgroups (high vs. low on each process) were created by median splitting the composite scores for behavior and cognitive processes using pre-treatment data. Pre = Pre-treatment. Post = Post-treatment. FU6 = 6-month follow-up.