Table 3.

Outcome measures

	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