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Table 1 Overview of interventions, assessments, and timepoints

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

  Study Period
EnrolmentBaselineInterventionFollow-up assessments
Timepoint-t1T0TinterventionT1T2T3T4
  Week 0Week 1–6Week 7Week 26Week 39Week 52
Erolment:       
Eligibility screenX      
Informed consentX      
Allocation X     
Interventions:       
Cognitive Behavioral Therapy for Insomnia (CBT-I)  X    
Chronobiological Therapy (CT)  X    
Combination of CBT-I & CT  X    
Treatment as Usual  X    
Assessments:       
Demographics X     
CIDI-SF1 X    X
IDS-SR2 X XXXX
HADS3 X XXXX
PANAS4 X XXXX
Actigraphy X X  X
CSD5 XXX  X
ISI6XX XXXX
PSQI7 X     
DSISD8 X     
Sleep history X     
MCTQ9 X     
rMEQ10 X     
ITQ11X   X X
BAI12 X XXXX
LES-B13 X  XXX
CTQ14 X     
TIC-P15 X    X
Baecke X     
Compliance  X    
Use of interventions    XXX
Health care use    XXX
MRI16 X X   
  1. 1 Composite International Diagnostic Interview – Short Form, 2 Inventory of Depressive Symptoms – Self Report, 3 Hospital Anxiety and Depression Scale, 4 Positive Affect Negative Affect Scale, 5 Consensus Sleep Diary, 6 Insomnia Severity Index, 7 Pittsburgh Sleep Quality Index, 8 Duke Structured Interview for Sleep Disorders, 9 Munich Chronotype Questionnaire, 10 reduced Morningness-Eveningness Questionnaire, 11 Insomnia Type Questionnaire, 12 Becks Anxiety Inventory, 13 Life Experience Survey, 14 Childhood Trauma Questionnaire, 15 Trimbos and iMTA questionnaire on Costs associated with Psychiatric Illness, 16Magnetic Resonance Imaging
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