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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