Table 3.
Sleep diary measures
| Measures | BBTI (n=40)
|
SH (n=39)
|
BBTI–SH difference (SEM) [95% CI], Cohen’s d effect size | ||
|---|---|---|---|---|---|
| Pretreatment/posttreatment, mean (SD) | Difference (SEM) [95% CI] | Pretreatment/posttreatment, mean (SD) | Difference (SEM) [95% CI] | ||
| SL | 35.06 (17.32)/18.10 (8.46) | 15.83 (2.13) [16.47–20.19] | 34.40 (15.33)/29.70 (13.04) | 8.93 (1.66) [5.53–12.33] | 6.90 (3.09) [0.56–13.23] 0.68 |
| TST | 350.20 (61.40)/356.97 (38.84) | −6.77 (10.22) [−27.72 to 14.19] | 343.23 (65.10)/361.10 (61.49) | −17.56 (5.93) [−30.00 to −5.72] | 11.10 (11.84) [−13.11 to 35.31] 0.24 |
| TIB | 541.42 (92.95)/444.04 (56.57) | 97.38 (13.32) [70.15–124.62] | 536.60 (118.59)/511.54 (95.07) | 25.05 (9.89) [4.81–45.29] | 72.32 (15.47) [40.46–103.98] 1.13 |
| SE | 0.65 (0.16)/0.81 (0.10) | −0.15 (0.03) [−0.20 to −0.09] | 0.66 (0.16)/0.72 (0.14) | −0.05 (0.14) [−0.08 to −0.02] | −0.08 (0.02) [−0.14 to −0.02] 0.76 |
| WASO | 156.15 (116.49)/68.96 (55.12) | 88.32 (18.88) [49.70–126.93] | 158.96 (128.98)/120.74 (99.11) | 33.98 (11.25) [10.97–57.00] | 54.32 (21.21) [10.93–97.72] 0.64 |
| SQ, 0–100 | 54.32 (5.55)/66.89 (6.76) | 12.57 (4.03) [6.80–19.37] | 52.98 (6.01)/56.77 (6.94) | 3.79 (3.22) [−2.51 to 9.07] | 8.78 (5.63) [2.66–14.90] 0.83 |
Abbreviations: BBTI, brief behavioral treatment for insomnia; CI, confidence interval; SH, sleep hygiene; SL, sleep latency; TST, total sleep time; TIB, time in bed; SE, sleep efficiency; WASO, wake after sleep onset; SQ, sleep quality; SEM, standard error of the mean.