Psychometric Properties of the Polish Version of the 36-Item WHODAS 2.0 in Patients with Low Back Pain

Agnieszka Ćwirlej-Sozańska, Agnieszka Bejer, Agnieszka Wiśniowska-Szurlej, Anna Wilmowska-Pietruszyńska, Alessandro de Sire, Renata Spalek and Bernard Sozański
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Agnieszka Ćwirlej-Sozańska: Institute of Health Sciences, College of Medical Sciences of the University of Rzeszow, University of Rzeszow, Rejtana16C, 35-959 Rzeszow, Poland
Agnieszka Bejer: Institute of Health Sciences, College of Medical Sciences of the University of Rzeszow, University of Rzeszow, Rejtana16C, 35-959 Rzeszow, Poland
Agnieszka Wiśniowska-Szurlej: Institute of Health Sciences, College of Medical Sciences of the University of Rzeszow, University of Rzeszow, Rejtana16C, 35-959 Rzeszow, Poland
Anna Wilmowska-Pietruszyńska: Faculty of Medicine, Lazarski University, Świeradowska Street 43, 02-662 Warsaw, Poland
Alessandro de Sire: Physical and Rehabilitative Medicine, Department of Health Sciences, University of Eastern Piedmont, Viale Piazza D’Armi 1, 28100 Novara, Italy
Renata Spalek: Department of Geriatrics, Neurosciences, Orthopedics, Center for Geriatric Medicine (CEMI), Institute of Internal Medicine and Geriatrics, Catholic University of the Sacred Heart, L.go F.Vito 8, 00168 Rome, Italy
Bernard Sozański: Institute of Health Sciences, College of Medical Sciences of the University of Rzeszow, University of Rzeszow, Rejtana16C, 35-959 Rzeszow, Poland

IJERPH, 2020, vol. 17, issue 19, 1-17

Abstract: The World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) is considered by the World Health Organization (WHO) to be a useful tool for assessing the functioning and disability of the general population as well as the effectiveness of the applied interventions. Until this study, no data regarding the validity of the 36-item WHODAS 2.0 in chronic low back pain (LBP) in Poland have been explored. This study was conducted on 92 patients suffering from chronic LBP admitted to the rehabilitation ward. The Polish version of the 36-item WHODAS 2.0, the Sf-36 Health Survey (SF-36), the Oswestry Disability Index (ODI), the Hospital Anxiety and Depression Scale (HADS) and the Visual Analogue Scale (VAS) questionnaires were applied to assess patients. The scale score reliability of the entire tool for the study population was very high. The Cronbach’s alpha test result for the entire scale was 0.92. For the overall result of the WHODAS 2.0, the Intraclass Correlation Coefficient (ICC 1,2 ) was 0.928, which confirmed that the scale was consistent over time. The total result and the vast majority of domains of the 36-item WHODAS 2.0 correlated negatively with domains of the SF-36 questionnaire; thus, a higher WHODAS 2.0 score was associated with a lower score on the SF-36 questionnaire. We found that the minimal clinically important difference (MCID) for the total WHODAS 2.0 score in patients after rehabilitation for LBP was 4.87. Overall, the results indicated that the Polish version of the 36-item WHODAS is suitable for assessing health and disability status in patients with LBP.

Keywords: ICF; disability; low back pain; rehabilitation; validity; reliability (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
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