Table 2.
Comparison of characteristics across treatment modalities (N=943).
| Characteristic | Total sample (N=943) | TAUa (n=467) | bCBTb (n=476) | P valuec | |||
| Age (years), mean (SD) | 38.96 (13.09) | 38.71 (13.08) | 39.21 (13.1) | .56 | |||
| Gender | |||||||
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|
Female, mean (SD) | 644 (68.3) | 326 (69.8) | 318 (66.8) | .36 | ||
| Marital status , n (%) | .27 | ||||||
|
|
Single | 314 (33.3) | 155 (33.2) | 159 (33.4) |
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|
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Divorced | 103 (10.9) | 43 (9.2) | 60 (12.6) |
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Widowed | 9 (0.9) | 6 (1.3) | 3 (0.6) |
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Living together | 206 (21.8) | 111 (23.8) | 95 (19.9) |
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Married | 311 (32.9) | 152 (32.5) | 159 (33.4) |
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| Highest level of education , n (%) | .92 | ||||||
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Low | 146 (15.5) | 74 (15.8) | 72 (15.1) |
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Middle | 349 (37) | 170 (36.4) | 179 (37.6) |
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High | 447 (47.4) | 222 (47.5) | 225 (47.3) |
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| Trial site , n (%) | .99 | ||||||
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Germany | 173 (18.3) | 87 (18.6) | 86 (18.1) |
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Sweden | 141 (14.9) | 68 (14.6) | 73 (15.3) |
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Netherlands | 102 (10.8) | 49 (10.5) | 53 (11.1) |
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United Kingdom | 101 (10.7) | 52 (11.1) | 49 (10.3) |
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Spain | 127 (13.5) | 63 (13.5) | 64 (13.4) |
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France | 105 (11.1) | 54 (11.6) | 51 (10.7) |
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Switzerland | 50 (5.3) | 24 (5.1) | 26 (5.5) |
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Poland | 84 (8.9) | 42 (8.9) | 42 (8.8) |
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Denmark | 60 (6.4) | 28 (5.9) | 32 (6.7) |
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| Psychometrics | |||||||
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PHQ-9d, mean (SD) | 15.36 (4.78) | 15.38 (4.66) | 15.34 (4.9) | .88 | ||
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QIDSe sum of sleep scores (items 1-4), mean (SD) | 4.79 (2.42) | 4.71 (2.31) | 4.87 (2.52) | .31 | ||
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Insomnia items , n (%) | ||||||
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|
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Difficulty falling asleep | 453 (48) | 225 (48.2) | 228 (47.9) | .99 | |
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Awake during the night | 512 (54.3) | 251 (53.7) | 261 (54.8) | .76 | |
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Waking up too early | 321 (34) | 149 (31.9) | 172 (36.1) | .18 | |
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Hypersomnia item , n (%) | ||||||
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Sleeping too much | 135 (14.3) | 65 (13.9) | 70 (14.7) | .77 | |
aTAU: treatment-as-usual.
bbCBT: blended cognitive behavioral therapy.
cA 2-tailed t test was performed for continuous variables (age, PHQ-9, QIDS). Chi-square test was performed for categorical variables (gender, marital status, education, trial site and, insomnia and hypersomnia prevalence).
dPHQ-9: Patient Health Questionnaire-9.
eQIDS: Quick Inventory of Depressive Symptomatology.