Table 2.
Effects of CBT and PC on the change in sleep-diary and traditional polysomnography indices of sleep
| Mean sleep-diary data | CBT (n = 16) | PC (n = 14) |
|---|---|---|
| SOL, min | −7.3 (9.9) | −1.7 (11.6) |
| WASO, mina | −48.6 (29.2) | −25.8 (20.6) |
| TST, min | 22.4 (37.6) | 14.5 (36.5) |
| Sleep efficiency, %a | 10.6 (6.1) | 5.2 (4.9) |
| Sleep quality, score | 0.56 (0.6) | 0.23 (0.5) |
| TIB, mina | −48.4 (29.4) | −13.1 (31.4) |
| Polysomnographic data | ||
| SOL, min | −3.2 (10.4) | 1.2 (7.5) |
| WASO, mina | −28.1 (20.9) | −6.5 (28.7) |
| TST, min | 10.1 (51.9) | −5.1 (49.3) |
| Sleep efficiency, %a | 5.8 (8.2) | 1.2 (6.3) |
Data are presented as mean (SD) CBT refers to cognitive behavioral therapy
PC, placebo-controlled condition; SOL, sleep-onset latency; WASO, wake time after sleep onset; TST, total sleep time; TIB, time in bed
a
P < 0.05.