Internet-guided cognitive behavioral and chronobiological interventions in depression-prone insomnia subtypes: protocol of a randomized controlled prevention trial

摘要

Flowchart diagram showing a summary of the study design. DSM-5: Diagnostic and Statistical Manual of Mental Disorders, 5th edition; ISI: Insomnia Severity Index. CIDI: Composite International Diagnostic Interview; CBT-I: Cognitive Behavioral Therapy for Insomnia; CT: Chronobiological Therapy; TAU: treatment as usual