Chapter

STOP, THAT and One Hundred Other Sleep Scales

pp 167-168

Date:

Fatigue Severity Scale (FSS)

  • Azmeh ShahidAffiliated withUniversity of Toronto The Youthdale Child and Adolescent Sleep Centre Email author 
  • , Kate WilkinsonAffiliated withUniversity of Toronto The Youthdale Child and Adolescent Sleep Centre
  • , Shai MarcuAffiliated withUniversity of Toronto The Youthdale Child and Adolescent Sleep Centre
  • , Colin M. ShapiroAffiliated withDepartment of Psychiatry, University of Toronto The Youthdale Child and Adolescent Sleep Centre

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Abstract

The FSS is a nine-item instrument designed to assess fatigue as a symptom of a variety of different chronic conditions and disorders. The scale addresses fatigue’s effects on daily functioning, querying its relationship to motivation, physical activity, work, family, and social life, and asking respondents to rate the ease with which they are fatigued and the degree to which the symptom poses a problem for them.