What is it about?

FSS has been translated into Chinese version but hasn’t been applied in SLE patients. As fatigue is one of the mostly referred subjective symptoms in SLE, there is a need for a reliable instrument to assess this problem. This was the first study to test the psychometric properties of FSS in Chinese SLE patients. Our study showed that original 9-item FSS had acceptable psychometric properties, in accordance with findings from other language versions in different populations [28, 33, 34]. And the 7-item FSS also have good psychometric properties for Chinese SLE patients.

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Why is it important?

Fatigue is the most common symptom in Systemic Lupus Erythematosus (SLE) patients. Many fatigue instruments have been used in SLE, with Fatigue Severity Scale (FSS) mostly adopted. However, fatigue instruments haven’t been tested in the Chinese SLE population. The aim of our study was to test the psychometric properties of FSS in Chinese SLE patients.


9-item FSS is a reliable instrument and can be used to assess fatigue problem in Chinese SLE. The 7-item FSS also demonstrated good psychometric properties. As the deletion of two items simplify the content of FSS, it may make patients more willing to participate in study. However, another study about whether the 7-item FSS is more easy to use from patients’ perspectives is needed.

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Read the Original

This page is a summary of: Psychometric properties of fatigue severity scale in Chinese systemic lupus erythematosus patients, Health and Quality of Life Outcomes, April 2019, Springer Science + Business Media,
DOI: 10.1186/s12955-019-1141-x.
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