Fatigue Severity Scale: Difference between revisions

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=== Validity  ===
=== Validity  ===
<u>Criterion Validity (Predictive/Concurrent)</u>
<u></u>Not established
<u>Construct Validity (Convergent/Discriminant)</u>
<u></u>'''Convergent Validity:'''
'''Parkinson’s Disease:'''
*Excellent (r = -0.77) negative correlation with Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-F) scale (Hagell et al, 2006)&nbsp;<ref name="Hagell et al">Hagell, P., Hoglund, A., et al. "Measuring fatigue in Parkinson's disease: a psychometric study of two brief generic fatigue questionnaires." J Pain Symptom Manage 2006 32(5): 420-432</ref>
*Excellent (r = 0.62) correlation with Nottingham Health Profile (NHP-EN) scale (Hagell et al, 2006)&nbsp;
*Excellent (r = 0.84) correlation with Parkinson’s Fatigue (PFS) scale (Grace et al, 2006)&nbsp;<ref name="Grace et al">Grace, J., Mendelsohn, A., et al. "A comparison of fatigue measures in Parkinson's disease." Parkinsonism Relat Disord 2007 13(7): 443-445</ref>
*Poor-adequate (r = 0.22-0.47) correlation with Parkinson’s Disease Questionnaire-39 (PDQ-39) scale (Herlofson et al, 2003; n = 66, mean age = 70.8 (9.9) years, time since PD = 70.2 (56.1) months)&nbsp;<ref name="Herlofson">Herlofson, K. and Larsen, J. P. "The influence of fatigue on health-related quality of life in patients with Parkinson's disease." Acta Neurol Scand 2003 107(1): 1-6</ref>


=== Responsiveness  ===
=== Responsiveness  ===

Revision as of 20:59, 4 August 2014

 

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Objective
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The Fatigue Severity Scale is a 9-item scale which measures the severity of fatigue and its effect on a person's activities and lifestyle in patients with a variety of disorders

Intended Population
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Those with a variety of diagnoses including arthritis, fibromyalgia, geriatrics, multiple sclerosis, Parkinson’s disease, stroke

Method of Use[edit | edit source]

  • A 9 item questionnaire with questions related to how fatigue interferes with certain activities and rates its severity.
  • The items are scored on a 7 point scale with 1 = strongly disagree and 7= strongly agree.
  • The minimum score = 9 and maximum score possible = 63. Higher the score = greater fatigue severity.
  • Another way of scoring: mean of all the scores with minimum score being 1 and maximum score being 7.
  • Self report scale.

Reference
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Evidence[edit | edit source]

Reliability[edit | edit source]

Test-retest Reliability

Parkinson's Disease:

(Valderramas et al, 2012; n = 30, mean age = 62 (11) years, mean time post- PD = 7.6 (6.5) years) [1]

  • The evaluation of the FSS-BR (Fatigue Severity Scale-Brazilian-Portuguese version) suggests an excellent Test-retest reliability (ICC = 0.91)

Interrater/Intrarater Reliability

Not established

Validity[edit | edit source]

Criterion Validity (Predictive/Concurrent)

Not established

Construct Validity (Convergent/Discriminant)

Convergent Validity:

Parkinson’s Disease:

  • Excellent (r = -0.77) negative correlation with Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-F) scale (Hagell et al, 2006) [2]
  • Excellent (r = 0.62) correlation with Nottingham Health Profile (NHP-EN) scale (Hagell et al, 2006) 
  • Excellent (r = 0.84) correlation with Parkinson’s Fatigue (PFS) scale (Grace et al, 2006) [3]
  • Poor-adequate (r = 0.22-0.47) correlation with Parkinson’s Disease Questionnaire-39 (PDQ-39) scale (Herlofson et al, 2003; n = 66, mean age = 70.8 (9.9) years, time since PD = 70.2 (56.1) months) [4]

Responsiveness[edit | edit source]

Miscellaneous
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Links[edit | edit source]

Fatigue Severity Scale

Recent Related Research (from Pubmed)[edit | edit source]

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References[edit | edit source]

References will automatically be added here, see adding references tutorial.

  1. ↑ Valderramas, S., Feres, A. C., et al. "Reliability and validity study of a Brazilian-Portuguese version of the fatigue severity scale in Parkinson's disease patients." Arq Neuropsiquiatr 2012 70(7): 497-500
  2. ↑ Hagell, P., Hoglund, A., et al. "Measuring fatigue in Parkinson's disease: a psychometric study of two brief generic fatigue questionnaires." J Pain Symptom Manage 2006 32(5): 420-432
  3. ↑ Grace, J., Mendelsohn, A., et al. "A comparison of fatigue measures in Parkinson's disease." Parkinsonism Relat Disord 2007 13(7): 443-445
  4. ↑ Herlofson, K. and Larsen, J. P. "The influence of fatigue on health-related quality of life in patients with Parkinson's disease." Acta Neurol Scand 2003 107(1): 1-6
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