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Table 3 Outcome measures

From: Testing the efficacy of web-based cognitive behavioural therapy for adult patients with chronic fatigue syndrome (CBIT): study protocol for a randomized controlled trial

  Instruments
Primary outcome measure
Fatigue severity Checklist Individual Strength, (CIS) subscale fatigue severity
Secondary outcome measures
Level of disabilities Sickness Impact Profile-8, (SIP8) total score
Physical functioning Medical Outcomes Survey Short Form-36, (SF-36) subscale physical functioning
Psychological distress Symptom Checklist 90items, (SCL-90) total score
Clinical significant improvement in fatigue Checklist Individual Strength, (CIS) subscale fatigue severity < 35 and a reliable change index > 1.96