Table 1.
Proportions of each treatment × sleep duration subgroup that achieved insomnia remission, depression remission, and insomnia and/or depression remission.
| Remission Status* | Insomnia Therapy | |||
|---|---|---|---|---|
| CBT-I | CTRL | |||
| Sleep Duration (n) | Sleep Duration (n) | |||
| ≥ 5 hours (41) | < 5 hours (10) | ≥ 5 hours (29) | < 5 hours (19) | |
| Insomnia remission, n (%) [A] | 24 (58.4)a | 1 (10.0)b | 7 (20.7)b | 7 (36.8)a,b |
| Depression remission, n (%) [B] | 16 (39.0) | 2 (20.0) | 8 (27.6) | 9 (47.4) |
| A and B remission, n (%) | 16 (39.0)a | 1 (10.0)b | 4 (13.8)a,b | 5 (26.3)a,b |
Insomnia remission determined by an Insomnia Severity Index score < 8 at the end of treatment. Depression remission determined by a Hamilton Rating Scale for Depression score < 8 at the end of treatment. *Values that have different superscript letters are significantly different from each other as determined by logistic regression. CBT-I = cognitive behavioral therapy for insomnia, CTRL = quasi-desensitization sham control.