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Table 2 Measurements and instruments at different point of assessment

From: Cost-effectiveness of i-Sleep, a guided online CBT intervention, for patients with insomnia in general practice: protocol of a pragmatic randomized controlled trial

Measurement Instrument Baseline (T0) T1, T2 and T3 (at 8, 26 and 52 weeks)
Background characteristics n/a X -
History of insomnia n/a X  
Alcohol use AUDIT X X
Insomnia severity ISI X X
Anxiety and depression HADS X X
Daytime insomnia consequences Espie et al., 2012 X X
Daytime functioning WSAS X X
Fatigue FSS X X
Quality of life EQ-5D-5 L X X
Healthcare utilization & work absenteeism TiC-P X X
Treatment satisfaction n/a - T1
Actigraphy Actigraph GT9X Link X X
Sleep diary Consensus diary X X
Sleep medication n/a X X
  1. AUDIT: Alcohol Use Disorders Identification Test; ISI: Insomnia Severity Index; HADS: Hamilton Anxiety and Depression Scale; WSAS: Work and Social Adjustment scale; FSS: Fatigue Severity Scale; EQ-5D-L: EuroQoL; TiC-P: Trimbos and iMTA questionnaire on Costs associated with Psychiatric Illness