Table 4 |
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|
Subjective sleep measures; Mean (SD), Change values and Effect Sizes |
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|
Pre |
Post |
Fu3 |
Change Pre to Post |
Change Pre to Fu3 |
|||
|
Mean (SD) |
Mean (SD) |
Mean (SD) |
Mean (95% CI) |
Effect size (d)a |
Mean (95% CI) |
Effect size (d) |
|
|
|
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|
Insomnia Severity Index |
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|
Bibliotherapy with support (n = 44) |
17.5 (3.5) |
7.6 (4.5) |
8.4 (5.1) |
-9.9 (-11.3 to -8.5) |
-2.46 |
-9.1 (-10.7 to -7.5) |
-2.08 |
|
Bibliotherapy (n = 45) |
16.6 (3.8) |
11.2 (4.2) |
10.4 (4.8) |
-5.3 (-6.6 to -4.0) |
-1.35 |
-6.2 (-7.5 to -4.8) |
-1.43 |
|
Waiting list control group (n = 44) |
16.7 (3.7) |
15.6 (4.7) |
14.2 (4.7) |
-1.1 (-2.2 to 0.0) |
-0.26 |
-2.5 (-3.5 to -1.5) |
-0.59 |
|
Sleep Related Behaviours Questionnaire |
|||||||
|
Bibliotherapy with support (n = 44) |
83.6 (14.5) |
57.8 (16.4) |
58.5 (16.0) |
-25.8 (-30.4 to -21.2) |
-1.67 |
-25.1 (-29.8 to -20.8) |
-1.64 |
|
Bibliotherapy (n = 45) |
77.1 (12.8) |
66.6 (16.0) |
61.5 (17.5) |
-10.5 (-14.1 to -6.9) |
-0.72 |
-15.6 (-20.5 to -10.7) |
-1.02 |
|
Waiting list control group (n = 44) |
83.4 (12.8) |
79.5 (13.8) |
76.9 (13.6) |
-3.9 (-6.9 to -0.9) |
-0.29 |
-6.5 (-9.4 to -3.5) |
-0.49 |
|
Dysfunctional Beliefs and Attitudes about Sleep |
|||||||
|
Bibliotherapy with support (n = 44) |
125.2 (31.3) |
58.0 (30.8) |
-* |
-67.2 (-77.0 to -57.4) |
-2.17 |
- * |
- * |
|
Bibliotherapy (n = 45) |
116.0 (31.8) |
85.8 (37.0) |
- |
-30.1 (-41.4 to -18.9) |
-0.88 |
- |
- |
|
Waiting list control group (n = 44) |
133.5 (31.1) |
122.7 (30.7) |
- |
-10.8 (-16.2 to -5.4) |
-0.35 |
- |
- |
|
Bed Time Stress b |
|||||||
|
Bibliotherapy with support (n = 44) |
1.5 (1.1) |
0.49 (0.74) |
0.55 (0.88) |
-1.03 (-1.34 to -0.72) |
-1.08 |
-0.97 (-1.29 to -0.64) |
-0.95 |
|
Bibliotherapy (n = 45) |
0.80 (0.92) |
0.68 (0.85) |
0.52 (0.74) |
-0.12 (-0.34 to 0.10) |
-0.14 |
-0.28 (-0.51 to -0.06) |
-0.36 |
|
Waiting list control group (n = 43) |
1.2 (1.1) |
1.1 (1.1) |
1.1 (1.1) |
-0.05 (-0.33 to 0.22) |
-0.09 |
-0.08 (-0.33 to 0.16) |
-0.09 |
|
Sleep Quality c |
|||||||
|
Bibliotherapy with support (n = 44) |
2.6 (0.66) |
3.6 (0.65) |
3.5 (0.71) |
1.0 (0.75 to 1.2) |
1.53 |
0.93 (0.68 to 1.2) |
1.31 |
|
Bibliotherapy (n = 45) |
2.6 (0.53) |
3.1 (0.57) |
3.1 (0.65) |
0.57 (0.39 to 0.75) |
0.91 |
0.53 (0.32 to 0.75) |
0.84 |
|
Waiting list control group (n = 43) |
2.9 (0.56) |
3.0 (0.66) |
3.1 (0.61) |
0.11 (-0.07 to 0.28) |
0.16 |
0.20 (0.03 to 0.36) |
0.34 |
|
|
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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.) b Scored on a scale 0-5, with 0 indicating no stress at all, and 5 indicating very high stress c Scored on a scale 1-5, with 1 indicating very poor sleep quality, and 5 indicating very good sleep quality * DBAS-data missing from 3-month follow-up |
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|
Jernelöv et al. BMC Psychiatry 2012 12:5 doi:10.1186/1471-244X-12-5 |
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