Evidence map›Paper›PMID 31014340›Full record

ArticleHealth and quality of life outcomes2019

Psychometric properties of fatigue severity scale in Chinese systemic lupus erythematosus patients.

Chenchen Feng, Qian He, Yan Wu, Xiaokun Hu, Juan Wu, Xiaoli He, Shuzhen Zhao

Abstract readValidation Study
In one paragraph

Article in Health and quality of life outcomes, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Chenchen FengOutpatient Department, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu, 610041, Sichuan Province, People's Republic of China.
Qian HeOutpatient Department, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu, 610041, Sichuan Province, People's Republic of China.
Yan WuOutpatient Department, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu, 610041, Sichuan Province, People's Republic of China.
Xiaokun HuOutpatient Department, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu, 610041, Sichuan Province, People's Republic of China.
Juan WuOutpatient Department, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu, 610041, Sichuan Province, People's Republic of China.
Xiaoli HeOutpatient Department, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu, 610041, Sichuan Province, People's Republic of China.
Shuzhen ZhaoOutpatient Department, West China Hospital of Sichuan University, No. 37, Guoxue Lane, Chengdu, 610041, Sichuan Province, People's Republic of China. ssszszzsz@126.com.ORCID http://orcid.org/0000-0002-3748-9722

Funding

the China Medical Board 0082827601130the Science and Technology Department of Sichuan Province 2013FZ0088
6 · The paper itself

Abstract

backgroundFatigue 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.

methodsA cross-sectional study was conducted. 201 patients diagnosed with SLE were enrolled in the study with convenience sampling. Fatigue score, depression score and vitality subscale score of SF-36 were collected. Floor and ceiling effects were tested. Factor analysis was conducted. Reliability and validity of FSS were also tested.

resultsFloor (4.50%) and ceiling (4.00%) effects were minimal. One factor was extracted, explaining 61.80% of total variance. When item1 and item 2 were deleted, one factor explained 69.54% of variance, and Cronbach's Alpha increased from 0.92 to 0.93. Intraclass correlation coefficient (ICC) was 0.94. Fatigue correlated with both depression (r = 0.52, P < 0.01) and vitality (r = - 0.55, P < 0.01), indicating acceptable construct validity for original FSS. When item 1 and 2 were removed, the correlation coefficient between 7-item FSS and vitality increased (r = - 0.58, P < 0.01), while correlation coefficient between 7-item FSS and depression remained the same (r = 0.52, P < 0.01). Known-groups validity was verified by that patients with depression showed higher fatigue score both for 9-item (Z = -5.56, P < 0.001) and 7-item FSS (Z = -5.70, P < 0.001).

conclusions9-item FSS is a reliable instrument and can be used to assess fatigue problem in Chinese SLE patients, and 7-item FSS also demonstrated good psychometric properties in the same participants.

Indexed as

AdultAsian PeopleCross-Sectional StudiesDepressionFactor Analysis, StatisticalFatigueFemaleHumansLupus Erythematosus, SystemicMaleMiddle AgedPsychometricsQuality of LifeReproducibility of ResultsSeverity of Illness IndexFatiguePsychometric propertiesScaleSystemic lupus erythematosus

Identifiers

PMID31014340
PMCPMC6480827

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.