Table 2.
Changes in clinical after CBTi in the PI group (n = 13).
| Pre-CBTi | Post-CBTi | T | P | |
|---|---|---|---|---|
| ISI⁎ | 14.3 ± 4.5 | 7.0 ± 5.4 | 3.724 | 0.003 |
| PSQI† | 12.9 ± 3.8 | 7.0 ± 3.0 | 5.272 | < 0.001 |
| DABS† | 92.0 ± 16.8 | 50.8 ± 33.3 | 6.178 | < 0.001 |
| BDIa | 7.0 ± 7.3 | 5.8 ± 7.9 | 1.505 | 0.158 |
| Sleep diary | ||||
| TST (hr) | 5.6 ± 1.2 | 5.9 ± 1.9 | − 0.442 | 0.666 |
| SL (min)⁎ | 39.3 ± 34.7 | 14.0 ± 16.2 | 3.701 | 0.003 |
| WASO (min)⁎ | 68.2 ± 50.8 | 30.8 ± 33.9 | 3.193 | 0.008 |
| SE (%) | 75.7 ± 13.8 | 82.1 ± 26.5 | − 0.806 | 0.436 |
Paired t-test; aInsomnia-excluded BDI scores; ⁎P < 0.05; †P < 0.001. Abbreviations: PI, psychophysiological insomnia; GS, good sleepers; PSQI, Pittsburgh Sleep Quality Index; DBAS, Dysfunctional Beliefs and Attitudes about Sleep; BDI, Beck Depression Inventory; TST, total sleep time; SL, sleep latency; SE, sleep efficiency; WASO, wake after sleep onset.