Table 2.
General sleep 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] | ||
| PSQI | 10.43 (2.78)/5.50 (1.27) | 4.63 (0.42) [3.78–5.48] | 10.13 (2.93)/7.16 (1.62) | 2.96 (0.37) [2.19–3.74] | 1.66 (0.61) [0.40–2.93] 0.74 |
| ESS | 5.93 (4.78)/2.36 (2.60) | 3.56 (0.59) [2.36–4.77] | 5.86 (4.28)/5.03 (3.44) | 1.66 (0.43) [0.77–2.56] | 1.90 (0.58) [0.70–3.90] 0.69 |
| DBAS | 5.90 (0.62)/4.88 (0.89) | 1.02 (0.10) [0.81–1.23] | 5.59 (0.74)/5.09 (0.99) | 0.49 (0.13) [0.22–0.77] | 0.52 (0.18) [0.14–0.90] 0.8 |
| ISI | 12.93 (2.89)/7.96 (1.99) | 4.77 (0.60) [3.53–6.00] | 12.00 (3.12)/11.36 (2.52) | 2.63 (0.47) [1.66–3.60] | 2.13 (0.74) [0.61–3.64] 0.86 |
Abbreviations: BBTI, brief behavioral treatment for insomnia; CI, confidence interval; SH, sleep hygiene; PSQI, Pittsburgh sleep quality index; ESS, Epworth sleepiness scale; DBAS, dysfunctional beliefs and attitudes about sleep scale; ISI, insomnia severity index; SEM, standard error of the mean.