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Table 3 Reliability of the FSS

From: Validation of the Fatigue Severity Scale in chronic hepatitis C

FSS scores

Treatment-naïve (PILLAR)

Treatment-experienced (ASPIRE)

Test-retest reliabilitya

  

 ICC

0.74

0.86

 Pearson’s correlation

0.74

0.86

Internal consistency

  

 Cronbach’s α

0.95

0.96

  1. FSS Fatigue Severity Scale, ICC intraclass correlation.
  2. aTest-retest reliability was calculated using data from Week 12 and Week 24, using only stable patients defined by a change in hemoglobin of <0.5 g/dL.