Table 1.
Descriptive Statistics for Mediators and Outcome Variables in Each Condition
| Mediator, outcome, and assessment | CBT (n = 60) | CT (n = 65) | BT (n = 63) | |||
|---|---|---|---|---|---|---|
| M | SD | M | SD | M | SD | |
| SBRS | ||||||
| Pre | 43.39 | 11.44 | 40.97 | 9.01 | 39.87 | 10.98 |
| S4 | 38.46 | 13.06 | 40.60 | 9.45 | 33.66 | 9.46 |
| Post | 35.28 | 10.30 | 39.19 | 10.52 | 33.61 | 10.62 |
| FU6 | 36.02 | 10.37 | 38.94 | 10.83 | 35.15 | 10.64 |
| Bedtime Variability | ||||||
| Pre | 0.75 | 0.33 | 0.89 | 0.36 | 0.75 | 0.37 |
| S4 | 0.47 | 0.46 | 0.74 | 0.33 | 0.39 | 0.35 |
| Post | 0.56 | 0.28 | 0.83 | 0.41 | 0.50 | 0.30 |
| FU6 | 0.66 | 0.31 | 0.83 | 0.28 | 0.72 | 0.35 |
| Risetime Variability | ||||||
| Pre | 0.84 | 0.35 | 0.97 | 0.41 | 0.86 | 0.39 |
| S4 | 0.48 | 0.33 | 0.91 | 0.52 | 0.46 | 0.34 |
| Post | 0.64 | 0.33 | 0.87 | 0.36 | 0.62 | 0.35 |
| FU6 | 0.74 | 0.34 | 0.91 | 0.38 | 0.78 | 0.38 |
| Time in Bed | ||||||
| Pre | 490.56 | 47.04 | 476.56 | 41.59 | 487.15 | 59.22 |
| S4 | 404.25 | 50.71 | 473.91 | 50.91 | 390.45 | 47.77 |
| Post | 447.91 | 45.57 | 466.09 | 43.95 | 436.21 | 38.17 |
| FU6 | 473.06 | 44.22 | 477.25 | 45.42 | 466.36 | 50.04 |
| APSQ | ||||||
| Pre | 61.42 | 18.74 | 60.63 | 20.94 | 62.21 | 23.24 |
| S4 | 46.33 | 18.95 | 41.87 | 17.93 | 51.90 | 20.27 |
| Post | 31.69 | 15.24 | 31.14 | 15.71 | 37.93 | 18.97 |
| FU6 | 26.70 | 16.08 | 30.25 | 19.77 | 35.02 | 18.58 |
| DBAS | ||||||
| Pre | 4.09 | 1.06 | 3.89 | 1.26 | 4.39 | 1.30 |
| S4 | 2.92 | 1.18 | 3.09 | 1.21 | 3.66 | 1.22 |
| Post | 1.98 | 1.18 | 2.08 | 1.06 | 2.86 | 1.31 |
| FU6 | 1.94 | 1.15 | 2.30 | 1.35 | 2.67 | 1.26 |
| SAMI | ||||||
| Pre | 2.70 | 0.56 | 2.68 | 0.62 | 2.76 | 0.56 |
| S4 | 2.60 | 0.62 | 2.48 | 0.60 | 2.64 | 0.55 |
| Post | 2.02 | 0.55 | 2.03 | 0.55 | 2.43 | 0.57 |
| FU6 | 1.99 | 0.47 | 1.99 | 0.62 | 2.29 | 0.59 |
| ISI | ||||||
| Pre | 17.88 | 3.42 | 17.58 | 3.50 | 18.30 | 3.40 |
| S4 | 12.05 | 3.42 | 13.10 | 4.32 | 12.07 | 3.61 |
| Post | 7.39 | 3.79 | 9.41 | 4.72 | 8.96 | 4.98 |
| FU6 | 7.55 | 4.26 | 8.82 | 5.36 | 9.41 | 5.12 |
Note. TIB = time in bed. APSQ = Anxiety and Perception about Sleep Questionnaire. DBAS = Dysfunctional Beliefs and Attitudes about Sleep. SAMI = Monitoring for Sleep-Related Threat. Pre = Pre-treatment. S4 = Session 4. Post = Post-treatment. FU6 = 6-month follow-up.