Table 2 |
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|
Sleep timing measures, Mean (SD), Change values and Effect Sizes |
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|
Pre |
Post |
Fu3 |
Change Pre to Post |
Change Pre to Fu3 |
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|
Mean (SD) |
Mean (SD) |
Mean (SD) |
Mean (95% CI) |
Effect size (d)a |
Mean (95% CI) |
Effect size (d) |
|
|
|
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|
Sleep Onset Latency, minutes |
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|
Bibliotherapy with support (n = 44) |
60.3 (41.0) |
24.9 (17.0) |
33.5 (22.6) |
-35.4 (-46.6 to -24.2) |
-1.13 |
-26.8 (-39.0 to -14.5) |
-0.81 |
|
Bibliotherapy (n = 45) |
65.7 (45.1) |
45.1 (32.2) |
43.0 (28.4) |
-20.6 (-30.6 to -10.6) |
-0.53 |
-22.7 (-34.8 to -10.5) |
-0.60 |
|
Wait-list control (n = 43) |
66.9 (42.1) |
62.2 (42.4) |
62.4 (45.1) |
-4.6 (-10.7 to 1.5) |
-0.11 |
-4.5 (-12.0 to 3.0) |
-0.10 |
|
Wake After Sleep Onset, minutes |
|||||||
|
Bibliotherapy with support (n = 44) |
53.6 (40.4) |
17.0 (16.8) |
26.8 (29.3) |
-36.5 (-47.7 to -25.4) |
-1.18 |
-26.8 (-38.9 to -14.6) |
-0.76 |
|
Bibliotherapy (n = 45) |
47.5 (33.6) |
32.0 (27.0) |
30.2 (28.7) |
-15.6 (-24.6 to -6.5) |
-0.51 |
-17.4 (-26.6 to -8.2) |
-0.55 |
|
Wait-list control (n = 43) |
36.9 (29.5) |
30.4 (28.9) |
25.3 (25.0) |
-6.5 (-12.5 to -0.4) |
-0.22 |
-11.6 (-19.4 to -3.7) |
-0.42 |
|
Total Sleep Time, hours |
|||||||
|
Bibliotherapy with support (n = 44) |
5.56 (1.44) |
6.07 (1.02) |
6.52 (0.95) |
0.51 (0.20 to 0.83) |
0.41 |
0.97 (0.56 to 1.37) |
0.79 |
|
Bibliotherapy (n = 45) |
5.73 (0.89) |
6.22 (1.02) |
6.46 (0.96) |
0.49 (0.26 to 0.73) |
0.51 |
0.73 (0.46 to 1.00) |
0.79 |
|
Wait-list control (n = 43) |
6.40 (1.09) |
6.55 (1.26) |
6.74 (1.11) |
0.14 (-0.14 to 0.42) |
0.13 |
0.34 (0.09 to 0.59) |
0.31 |
|
Sleep Efficiency, % |
|||||||
|
Bibliotherapy with support (n = 44) |
67.1 (15.5) |
85.4 (6.8) |
83.3 (8.3) |
18.3 (14.4 to 22.2) |
1.53 |
16.2 (11.7 to 20.6) |
1.30 |
|
Bibliotherapy (n = 45) |
68.3 (11.1) |
76.4 (10.9) |
78.4 (9.8) |
8.1 (5.8 to 10.3) |
0.74 |
10.1 (7.6 to 12.6) |
0.96 |
|
Wait-list control (n = 43) |
71.5 (11.2) |
74.5 (11.5) |
76.1 (10.5) |
3.0 (0.5 to 5.4) |
0.27 |
4.5 (1.8 to 7.2) |
0.42 |
|
|
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|
Abbreviations: Pre, Pre-treatment assessment; Post, Post-treatment assessment; Fu3, 3-month follow-up assessment a Effect sizes calculated within groups, pre-post, and pre-fu3, with pooled SDs. (A negative effect size represents a decrease in the measure, a positive effect size an increase.) |
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|
Jernelöv et al. BMC Psychiatry 2012 12:5 doi:10.1186/1471-244X-12-5 |
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