Table 4.
Absence of Diagnosis, Remission Rates, and Response Rates for Depression and for PTSD at Time 3.
| Outcome | CBTi + CPT (n = 56)a | Control + CPT (n = 54)a | p | Imputation Data | |
|---|---|---|---|---|---|
| OR | (95% CI) | ||||
| No PTSD Diagnosis | 79.1% | 50.0% | 0.007 | 4.55 | (1.51, 13.75) |
| PTSD Response | 88.0% | 73.9% | 0.073 | 3.31 | (0.89, 12.26) |
| PTSD Remission | 20.0% | 14.7% | 0.267 | 2.18 | (0.55, 8.62) |
| No Depression Diagnosis | 85.4% | 61.1% | 0.003 | 6.52 | (1.91, 22.26) |
| Depression Response | 68.9% | 32.2% | 0.003 | 5.26 | (1.79, 15.44) |
| Depression Remission | 45.8% | 20.2% | 0.009 | 5.01 | (1.50, 16.71) |
| No Insomnia Diagnosisb | 52.2% | 30.1% | 0.033 | 3.47 | (1.10, 10.88) |
| Insomnia Response | 62.7% | 39.7% | 0.031 | 3.36 | (1.12, 10.07) |
| Insomnia Remission | 38.1% | 17.7% | 0.020 | 4.55 | (1.27, 16.31) |
Abbreviations: Cognitive Behavioral Therapy for Insomnia; CI = Confidence Interval; OR = Odds Ratio: CPT = Cognitive processing Therapy.
All analyses are intent-to-treat penalized logistic regressions with missing values imputed and controlling for gender, age, education, minority status, recruitment site, antidepressant medication use, baseline lifetime traumatic events, baseline PTSD severity, and baseline depression.
Original sample at time 3 (CBTi + CPT n = 25; Control + CPT n = 36).
No insomnia diagnosis was based on an Insomnia Severity Index Score of < 8, which is consistent with no insomnia, as unlike for PTSD and depression, no insomnia diagnostic interviews were undertaken in the protocol.