Design RCT with Single group RCT Single RCT four month pre-post group follow-up Intervention (I) I1: I: Cognitive I: I: I: Cognitive and Comparison Behavioural behavioural Cognitive Cognitive behavioural (C) sleep therapy for therapy for intervention insomnia therapy therapy insomnia combined with for with and cognitive imagery insomnia adjunctive imagery behavioural rehearsal with exposure, rehearsal therapy for adjunctive relaxation therapy insomnia imagery and C: care and rehearsal rescripting imagery therapy therapy rehearsal (when therapy I2: reported problem C2: Placebo C: Waitlist US US OIF US US US Population Mean age (SD) veterans veterans OEF/OIF veterans veterans Gender (%) with sleep recently veterans (90% with complaints deployment with PTSD Vietnam) insomnia Mean age: with PTSD and and with PTSD and PTSD 40.9 (13.2) recurrent insomnia and Mean age: Gender: nightmares Mean age: insomnia 46 (11.1) Male (90%) Mean age: 37.7 (9.1) Mean age: Gender: 37.3 (9.2) Gender: 59 (4.0) Male (68%) Gender: Male Male Gender: (100%) (90%) Male (100%) Individual Individual Individual Group Individual Delivered to Dosage (total Five to Six sessions Four Ten Six number of sessions, CBT; sessions, sessions, sessions, sessions) 45 minutes three IRT) 60 90 60 minutes each each
Design RCT with four month follow-up Single group pre-post RCT Single group RCT Intervention (I) and Comparison (C) I1: Behavioural sleep intervention cognitive behavioural therapy for insomnia and imagery rehearsal therapy I2: C2: Placebo I: Cognitive behavioural therapy for insomnia combined with imagery rehearsal I: Cognitive therapy for insomnia with adjunctive imagery rehearsal therapy (when reported problem C: Waitlist I: Cognitive therapy with adjunctive exposure, relaxation and rescripting therapy I: Cognitive behavioural therapy for insomnia and imagery rehearsal therapy C: care Population Mean age (SD) Gender (%) US veterans with sleep complaints Mean age: 40.9 (13.2) Gender: Male (90%) US OIF veterans recently deployment with PTSD and recurrent nightmares Mean age: 37.3 (9.2) Gender: Male (100%) US OEF/OIF veterans with PTSD and insomnia Mean age: 37.7 (9.1) Gender: Male (90%) US veterans (90% Vietnam) with PTSD and insomnia Mean age: 59 (4.0) Gender: Male (100%) US veterans with insomnia and PTSD Mean age: 46 (11.1) Gender: Male (68%) Delivered to Individual Individual Individual Group Individual Dosage (total number of sessions) Five to sessions, 45 minutes each Six sessions CBT; three IRT) Four sessions, 60 Ten sessions, 90 Six sessions, 60 minutes each
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