Table 4.
Baseline and Posttreatment Sleep Diary Outcomes by Treatment Arm
| BBTI Pre |
BBTI Post |
CBTI Pre |
CBTI Post |
ΔCBTI-ΔBBTI es | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M | (SD) | M | (SD) | M | Δ | es | (SD) | M | (SD) | Δ | es | ||
|
| |||||||||||||
| Sleep Diary | n=25 | n=9 | n=17 | n=12 | |||||||||
| SOL | 51.9 | (42.6) | 20.8 | (10.9) | −31.1 | 0.7 ′ | 50.5 | (29.0) | 23.5 | (22.0) | −27.0 | 0.9 ′ | 0.2 |
| WASO | 39.7 | (38.3) | 18.5 | (15.9) | −21.2 | 0.6 | 55.0 | (45.5) | 27.4 | (33.0) | −27.6 | 0.6 ′ | 0.0 |
| EMA | 25.9 | (32.2) | 12.8 | (20.2) | −13.1 | 0.4 | 37.9 | (40.7) | 10.7 | (14.7) | −30.2 | 0.8 ′ | 0.4 |
| TIB | 452.0 | (90.6) | 449.0 | (37.6) | −3.0 | 0.0 | 497.2 | (94.1) | 489.3 | (77.7) | −7.9 | 0.1 | 0.1 |
| TST | 314.6 | (91.0) | 381.6 | (60.0) | 67.0 | 0.7 | 344.9 | (58.6) | 410.3 | (67.6) | 65.4 | 1.1 ″ | 0.4 |
| TWT | 143.2 | (82.2) | 67.5 | (29.9) | −75.7 | 0.9 ′ | 152.3 | (62.9) | 78.9 | (35.2) | −73.4 | 1.2 ″ | 0.4 |
| SE | 67.0 | (22.5) | 84.6 | (7.8) | 17.6 | 0.8 ′ | 70.2 | (8.9) | 83.9 | (6.1) | 13.7 | 1.5 ″ | 0.7 |
| SQ | 2.3 | (0.9) | 2.8 | (0.8) | 0.5 | 0.6 ′ | 2.4 | (0.4) | 3.4 | (0.7) | 1.0 | 2.5 ″ | 1.9 |
Notes. Δ, post – pre; p-value based on linear mixed model; es, Glass’s Δ=|Mpre – Mpost|/SDpre
′
p<.01
″
p<.001
BBTI, Brief Behavioral Treatment for Insomnia; CBTI, Cognitive Behavioral Therapy for Insomnia; SOL, sleep onset latency; WASO, wake after sleep onset; EMA, early morning awakenings; TIB, time in bed; TST, total sleep time; TWT, total wake time; SE, sleep efficiency; SQ, sleep quality.