Reliability and validity of the Fatigue Severity Scale in Swedish for patients with systemic lupus erythematosus

Mattsson, Malin; Möller, Bozena; Lundberg, Ingrid E.; Gard, Gunvor; Boström, Carina

doi:10.1080/03009740801914868

Cited by 58 publications

(77 citation statements)

References 30 publications

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“…There were no missing data for the FSS scale on both test and retest time points, confirming previous findings about high degrees of acceptability and feasibility of the scale in other clinical groups [12,13]. The FSS showed high test-retest reliability when it was re-administered to MDD patients 1 week later.…”

Section: Discussionsupporting

confidence: 85%

“…It was initially validated in multiple sclerosis (MS) and systematic lupus erythematosus (SLE) patients [11], while subsequent studies confirmed its psychometric properties in patients with chronic hepatitis C [12], SLE [13] and immune-related polyneuropathies [14]. It has also been used in various other populations: patients with Parkinson's disease [15], chronic fatigue syndrome [16], brain injury [17], sleep disorders [18] and cancer [19].…”

Section: Introductionmentioning

confidence: 99%

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Psychometric evaluation of the Fatigue Severity Scale in patients with major depression

et al. 2010

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Objectives: To investigate (1) the diagnostic value of the Signs of Depression Scale (SODS) in a Likert scale format and (2) whether the Likert scale improves the diagnostic value compared with the original dichotomous scale. Design: Cross-sectional multicentre study. Setting: One general and one university hospital in the Netherlands. Subjects: A total of 116 consecutive hospitalized stroke patients, of whom 53 were patients with communicative impairment. Main measures: Depression was diagnosed with the Composite International Diagnostic Interview (CIDI) administered to the patients' relatives. The Barthel Index (BI) was used as an external validator. Results: The correlation between the CIDI and the SODS-Likert or the SODS was small (r b = 0.18), and the correlation between the Barthel Index and the SODS-Likert (r s = −0.30) or the SODS (r s = −0.33) was moderate. For both instruments, the discriminatory power for diagnosing depression when compared with the CIDI was best at a cutoff score of ⩾2. The internal consistency of the SODS-Likert was acceptable (α = 0.69) and slightly higher than that of the SODS (α = 0.57). The inter-rater reliability of the SODS-Likert and the SODS was acceptable (intraclass correlation coefficient (ICC) 0.66 and ICC 0.80, respectively). The clinical utility was rated good. Conclusion: The diagnostic value of the SODS did not improve using a Likert scale format. However, the diagnostic value of the original dichotomous SODS is reasonable for the initial mood assessment of stroke patients with communicative impairment.

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Section: Discussionsupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Psychometric evaluation of the Fatigue Severity Scale in patients with major depression

et al. 2010

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“…26 Body structure ⁄ function Foot deformity, defined as tibiocalcaneal angle being greater than 5°varus or valgus, was determined by visual categorization with the participants in standing position. 27 This assessment showed no disagreement with a secondary photograph-based assessment for 66 of the participants.…”

Section: Activity ⁄ Participationmentioning

confidence: 99%

Walking ability and predictors of performance on the 6‐minute walk test in adults with spastic cerebral palsy

Maanum

Jahnsen

Frøslie

et al. 2010

Develop Med Child Neuro

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AIM To describe walking ability and identify factors predicting walking capacity in adults with spastic cerebral palsy (CP) assessed with the 6-minute walk test (6MWT).METHOD A cross-sectional clinical study as part of the recruitment process for a randomized controlled trial on the effects of botulinum toxin A. Data analysed were the 6MWT, Timed Up and Go (TUG) test, Borg Scale, spasticity, muscle strength, popliteal angle, pain, fatigue, type of CP, foot deformity, Gross Motor Function Classification System (GMFCS) levels, Functional Mobility Scale (FMS) scores, a gait questionnaire, interview, and demographic data. RESULTSIn total, 126 persons were included (53 males, 73 females; mean age 39y [SD 12y]; 59 with unilateral and 67 with bilateral spastic CP; GMFCS level I, n=12; level II, n=94; level III, n=20). Mean distance on the 6MWT was 485m (SD 95m) with FMS scores reflecting independent walking performance in daily life. Multiple regression analysis identified sex, type of CP, popliteal angle, pain, and TUG values as significant predictors, with TUG values as the strongest predictor (standardized regression coefficient =)0.57, p<0.001).INTERPRETATION Our results demonstrate that 39% of the participants had declined one GMFCS level from adolescence to their present age, and that the TUG was the strongest predictor for the 6MWT. This implicates the importance of focusing specifically on the different elements of functional mobility in further studies.Cerebral palsy (CP) is a group of permanent disorders of movement and posture, often accompanied by secondary musculoskeletal problems.1 Literature on children with CP supports a link between the levels of impairment and walking ability.1 However, the relation between self-reported declined walking ability and data on clinical measurements in adults needs more investigation.Surveys of adults with CP report that contractures, spasticity, pain, fatigue, as well as reduced muscle strength and balance, are associated with declined walking ability. 2-4The Gross Motor Function Classification System (GMFCS) categorizes gross motor function into five levels, with level I describing the highest level of function and level V the lowest.5 A study of individuals with CP aged up to 21 years showed that those classified at GMFCS levels III to V have their peak motor function in childhood, whereas individuals at levels I or II have a stable gross motor function. 6 However, surveys of adults with CP indicate that even persons at GMFCS levels I or II experience increasing walking difficulties in young adulthood.

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“…The most commonly used fatigue-specific measurement is the FSS [8,10]. The FSS was found to be reliable and valid measurement in several settings [6,7,11,[13][14][15][16][17][18][19]. The present study is the first to evaluate the validation of the FSS in patients with FM.…”

Section: Discussionmentioning

confidence: 88%

“…Because of these, we chose to use the FSS in FM patients. The FSS has high internal consistency, has good test-retest reliability and also has good concurrent validity in several settings such as multiple sclerosis, systemic lupus erythematosus, spinal cord injury, immune-mediated polyneuropathies, postpoliomyelitis syndrome, Parkinson's disease, chronic hepatitis C, cancer, and stroke [6,7,10,11,[13][14][15][16][17][18][19]. The present study is the first to evaluate the validation of the FSS in patients with FM.…”

Section: Introductionmentioning

confidence: 99%

Validation of the Turkish version of the fatigue severity scale in patients with fibromyalgia

Gencay-Can¹,

Can

2010

Rheumatol Int

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The aim of the study was to investigate the validity and reliability of the Turkish version of the fatigue severity scale (FSS) in fibromyalgia (FM) patients. Sixty-one FM patients and 54 healthy controls were evaluated using the Turkish version of the FSS. Reliability was investigated using test-retest reliability and internal consistency. Concurrent validity was evaluated between the FSS score and the VAS fatigue. Convergent validity was assessed by comparing the FSS score with the scores of VAS pain, Beck Depression Inventory (BDI), Beck Anxiety Inventory (BAI), and Fibromyalgia Impact Questionnaire (FIQ). Spearman's rank correlation coefficient was used to evaluate validity. Test-retest reliability and internal consistency of the FSS were excellent in FM patients (ICC: 0.94, Cronbach's alpha coefficient: 0.85) and in the healthy controls (ICC: 0.90, Cronbach's alpha coefficient: 0.91). For the concurrent validity, the correlation between the FSS and VAS fatigue was very good in FM group (r: 0.63, P: 0.000) and in the healthy controls (r: 0.94, P: 0.000). For the convergent validity, correlations between the FSS and BDI, BAI, FIQ, pain intensity were moderate to good in both groups (P: 0.000). The Turkish version of the FSS has been proved to be valid and reliable to detect severity of fatigue in FM patients. We recommend the use of it in clinical practice.

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Reliability and validity of the Fatigue Severity Scale in Swedish for patients with systemic lupus erythematosus

Abstract: The FSS-Swe supports construct validity, is feasible, has no important ceiling or floor effects, has satisfactory internal consistency, substantial test-retest reliability, and satisfactory content validity in the SLE patients studied. However, its sensitivity to change needs to be tested.

Cited by 58 publications

References 30 publications

Psychometric evaluation of the Fatigue Severity Scale in patients with major depression

Psychometric evaluation of the Fatigue Severity Scale in patients with major depression

Walking ability and predictors of performance on the 6‐minute walk test in adults with spastic cerebral palsy

Validation of the Turkish version of the fatigue severity scale in patients with fibromyalgia

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