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Instrument for the Assessment of Restless Legs Syndrome Severity (IRLSSG-Rating Scale)
Instrument for the Assessment of Restless Legs Syndrome Severity (IRLSSG-Rating Scale)
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| Classification |
Supplemental: Parkinson's Disease (PD)
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| Short Description of Instrument |
The Instrument for the Assessment of Restless Legs Syndrome Severity (IRLSSG-Rating Scale) is a generic instrument for the evaluation of Restless Leg Symptom (RLS) severity and change over time in patients diagnosed with RLS.
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| Scoring |
Higher scores indicate a greater RLS severity.
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| Psychometric Properties |
The IRLSSG was developed on the basis of repeated expert evaluation of potential items. The scale was found to have high levels of internal consistency, inter-examiner reliability, test-retest reliability over a 2-4 week period, and convergent validity (in primary RLS). Scale meets performance criteria for a brief, patient completed instrument that can be used to assess RLS severity for purposes of clinical assessment, research, or therapeutic trials. The scale has been used in several studies in PD.
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| References |
Abetz L, Arbuckle R, Allen RP, et al. The reliability, validity and responsiveness of the International Restless Legs Syndrome Study Group rating scale and subscales in a clinical-trial setting. Sleep Med 2006; 7:340-349.
Walters AS, LeBrocq C, Dhar A, et al. Validation of the International Restless Legs Syndrome Study Group rating scale for restless legs syndrome. Sleep Med 2003; 4:121- 132.
Wunderlich GR, Evans KR, Sills T, et al. An item response analysis of the international restless legs syndrome study group rating scale for restless legs syndrome. Sleep Med 2005; 6:131-139.
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