scholarly journals Reliability and Validity of the Persian Version of the Fatigue Severity Scale in Idiopathic Parkinson’s Disease Patients

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Seyed-Mohammad Fereshtehnejad ◽  
Hasti Hadizadeh ◽  
Farzaneh Farhadi ◽  
Gholam Ali Shahidi ◽  
Ahmad Delbari ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Psychometric Properties ◽  
Disease Severity ◽  
Internal Consistency ◽  
Fatigue Severity Scale ◽  
Severity Scale ◽  
Persian Version ◽  
Idiopathic Parkinson's Disease ◽  
Fatigue Severity

As one of the most frequent symptoms, measurement of fatigue is an issue of interest in Parkinson’s disease (PD). The fatigue severity scale (FSS) is one of the recommended questionnaires for this purpose. The aim of our study was to evaluate psychometric properties of the Persian version of the FSS (FSS-Per) to assess fatigue in PD patients. Ninety nondemented idiopathic Parkinson’s disease (IPD) patients were consecutively recruited from an outpatient referral movement disorder clinic. In addition to the disease severity scales, the FSS-Per was used for fatigue measurement. The internal consistency coefficient was larger than 0.8 for all of the items with a total Cronbach’s alpha of 0.96 (95% CI: 0.95–0.97). The FSS-Per score correlated with the UPDRS score (, ) and the “Hoehn and Yahr” (HY) stage (, ). The total score of the FSS-Per significantly discriminated IPD patients with more severe disability (HY stage > 2) versus those with less severe disease (HY stage ) (AUC = 0.81 (95% CI: 0.72–0.90)). The FSS-Per fulfilled a high internal consistency and construct validity to measure the severity of fatigue in Iranian IPD patients. These acceptable psychometric properties were reproducible in subgroups of IPD patients regarding different levels of education, disease severity, sex and age groups.

scholarly journals Reliability and validity study of a Brazilian-Portuguese version of the fatigue severity scale in Parkinson's disease patients

2012 ◽  
Vol 70 (7) ◽  
pp. 497-500 ◽  
Author(s):  
Silvia Valderramas ◽  
Ana Cristina Feres ◽  
Ailton Melo
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Beck Depression Inventory ◽  
Rating Scales ◽  
Brazilian Portuguese ◽  
Fatigue Severity Scale ◽  
Severity Scale ◽  
Portuguese Version ◽  
Yahr Scale ◽  
Fatigue Severity

The Fatigue Severity Scale (FSS) is one of the most frequently used self-rating scales for fatigue in Parkinson's disease (PD) and it lacks a validated Brazilian-Portuguese version. OBJECTIVE: To determine the construct validity and reproducibility of a Brazilian-Portuguese version of the FSS in patients with PD. METHODS: In a cross-sectional study, a Portuguese-language version of the FSS was applied to 30 patients with PD (62±11 years-old). The Parkinson's disease questionnaire (PDQ-39) was used as the validation criterion, while the Hoehn and Yahr scale, the Unified Parkinson's Disease Rating Scale (UPDRS), and the Beck Depression Inventory were employed to analyze the correlations with the FSS score. RESULTS: The test-retest intraclass correlation coefficient was 0.91 (p<0.01) for the Brazilian-Portuguese version of the FSS score, which was highly correlated with the PDQ-39 overall score (r=0.93; p<0.01) and the Beck Depression Inventory (r=0.75; p<0.01). It showed a correlation with the Hoehn and Yahr scale (r=0.40; p=0.02), and with the UPDRS as well (r=0.45, p=0.01). CONCLUSIONS: The Brazilian-Portuguese version of the FSS is valid and reproducible for using in Brazilian patients with PD.

scholarly journals Cross-Cultural Validity, Reliability, and Psychometric Properties of the Persian Version of the Scales for Outcomes in Parkinson’s Disease-Psychosocial Questionnaire

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Seyed-Mohammad Fereshtehnejad ◽  
Farzaneh Farhadi ◽  
Hasti Hadizadeh ◽  
Gholam Ali Shahidi ◽  
Ahmad Delbari ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Psychometric Properties ◽  
Disease Severity ◽  
Psychosocial Functioning ◽  
Psychiatric Symptoms ◽  
Cross Cultural ◽  
Yahr Stage ◽  
Persian Version ◽  
Interview Session

Objectives. Considering the influence of different motor and nonmotor features of Parkinson’s disease (PD), it is important to evaluate the psychosocial functioning of the patients. For this purpose, the scales for outcomes in Parkinson’s disease-psychosocial questionnaire (SCOPA-PS) has been previously designed. The aim of our study was to assess the cross-cultural validation and psychometric properties of the Persian version of the SCOPA-PS.Methods. One hundred and ten nondemented idiopathic Parkinson’s disease (IPD) patients were consecutively recruited from an outpatient referral movement disorder clinic. Eligible patients filled up a number of questionnaires including the Persian version of SCOPA-PS during the face-to-face interview session and clinical examination to measure disease severity, nonmotor psychiatric symptoms, and health-related quality of life (HRQoL).Results. The highest and lowest correlation coefficients of internal consistency were reported for item 7 on “asking for help”(r=0.765)and item 5 on “sexual problems”(r=0.553). Cronbach’s alpha reliability coefficient of the entire scale was 0.87 (95% CI: 0.83–0.90). The Hoehn and Yahr stage(r=0.34, P<0.001), Schwab and England ADL scale(r=-0.55, P<0.001), anxiety(r=0.64, P<0.001), depression(r=0.71, P<0.001), and fatigue(r=0.35, P<0.001)were significantly correlated with the total score of the SCOPA-PS questionnaire.Conclusions. The Persian version of SCOPA-PS is a highly reliable and valid scale to measure psychosocial functioning in IPD patients with different sex, age-group, and educational level, which could be applied in future researches. Disease severity scales, depression, anxiety, fatigue, and different domains of HRQoL were all associated with psychosocial functioning in PD patients.

Psychometric properties of the Fatigue Severity Scale and the Modified Fatigue Impact Scale

2013 ◽  
Vol 331 (1-2) ◽  
pp. 102-107 ◽  
Author(s):  
Y.C. Learmonth ◽  
D. Dlugonski ◽  
L.A. Pilutti ◽  
B.M. Sandroff ◽  
R. Klaren ◽  
...  
Keyword(s):  
Psychometric Properties ◽  
Fatigue Severity Scale ◽  
Severity Scale ◽  
Impact Scale ◽  
Fatigue Severity ◽  
Fatigue Impact Scale

Psychometric properties of the Fatigue Severity Scale: Rasch analyses of responses in a Norwegian and a Swedish MS cohort

2010 ◽  
Vol 16 (6) ◽  
pp. 733-741 ◽  
Author(s):  
A. Lerdal ◽  
S. Johansson ◽  
A. Kottorp ◽  
L. von Koch
Keyword(s):  
Psychometric Properties ◽  
Goodness Of Fit ◽  
Temporal Stability ◽  
Fatigue Severity Scale ◽  
Response Patterns ◽  
Severity Scale ◽  
Rigorous Testing ◽  
Rasch Analyses ◽  
Fatigue Severity ◽  
Swedish Cohort

Background: Rigorous testing of the original Fatigue Severity Scale (FSS—9) with modern psychometric methods is warranted. Objective: To determine the psychometric properties of the FSS—9 in multiple sclerosis (MS): internal scale validity; person response validity; unidimensionality; uniform differential item functioning; temporal stability of response patterns; and ability to separate people into distinct groups of fatigue. Methods: Rasch analyses were conducted on data from a Norwegian and a Swedish MS cohort followed for two years. Results: Item estimations in the FSS—9 did not differ between sex or levels of education but between the cohorts with regard to disability, disease course and time for evaluation, however, items 1 and 2 demonstrated unacceptable high outfit mean-square values in both cohorts. In an FSS—7 item version, items 3 and 4 in the Norwegian and 4 in the Swedish cohort demonstrated unacceptable goodness of fit but high separation indexes. In the FSS—7, the first unidimensional factor explained 87.5% (Norwegian cohort) and 86.4% (Swedish cohort) of the total variation. Conclusions: In MS, the FSS—7 demonstrates better psychometric properties than the FSS—9; items 1 and 2 neither empirically nor conceptually fit with the other seven items.

Psychometric properties of the Fatigue Severity Scale in polio survivors

2010 ◽  
Vol 33 (4) ◽  
pp. 290-297 ◽  
Author(s):  
Helena Burger ◽  
Franco Franchignoni ◽  
Nataša Puzić ◽  
Andrea Giordano
Keyword(s):  
Psychometric Properties ◽  
Fatigue Severity Scale ◽  
Severity Scale ◽  
Fatigue Severity ◽  
Polio Survivors

scholarly journals Validation of a three-item Fatigue Severity Scale for patients with substance use disorder: a cohort study from Norway for the period 2016-2020

2021 ◽  
Author(s):  
Jørn Henrik Vold ◽  
Rolf Gjestad ◽  
Christer F. Aas ◽  
Eivind Meland ◽  
Kjell Arne Johansson ◽  
...  
Keyword(s):  
Substance Use ◽  
Internal Consistency ◽  
Mixed Model ◽  
Linear Mixed Model ◽  
Health Assessment ◽  
Fatigue Severity Scale ◽  
Severity Scale ◽  
Validity And Reliability ◽  
Health Assessments ◽  
Fatigue Severity

Abstract Background Little attention has been paid to customising fatigue questionnaires for patients with Substance Use Disorders (SUDs). The present study aims to validate and shorten the nine-item Fatigue Severity Scale (FSS-9) and Visual Analogue Fatigue Scale (VAFS) for use with this population.MethodsWe used data from a nested cohort with annual health assessments with responses on the FSS-9 and VAFS. During the period 2016–2020, 917 health assessments were collected from 655 patients with SUD in Bergen and Stavanger, Norway. A total of 225 patients answered the health assessment at least twice. We defined baseline as the first annual health assessment when the health assessments were sorted chronologically per patient. We checked for internal consistency, and we used longitudinal confirmatory factor analysis (CFA) and linear mixed model (LMM) analysis to validate and shorten the FSS-9 and VAFS. ResultsThe internal consistency of the FSS-9 was excellent with a Cronbach’s α of 0.94 at baseline and 0.93 at the second annual health assessment. When shortening the FSS-9 to a three-item FSS (FSS-3, items 5–7), the Cronbach’s α was 0.87 at baseline and 0.84 at the second health assessment. The internal consistency was not affected when the VAFS was added to the FSS-3 and the FSS-9. The longitudinal CFA model showed a well-fitting model for the FSS-3 (χ2 = 13.33, degree of freedom = 8, P = 0.101). The LMM analysis showed equal linear changes at the individual level for the FSS-3 (slope: 0.00, P > 0.05) and FSS-9 (slope: 0.01, P > 0.05) between the health assessments. ConclusionThe FSS-9 could be shortened to the FSS-3 with high validity and reliability for patients with SUDs and the addition of VAFS did not provide much added variability.

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