Turkish Journal of Physical Medicine and Rehabilitation 2015 , Vol 61 , Num 4
Turkish version of parkinson fatigue scale: Validity and reliability study of binary scoring method
Erhan Arif Öztürk 1 ,Bilge Gönenli Koçer 2 ,Ebru Umay 1 ,Aytül Çakcı 1
1 Department of Physical Medicine and Rehabilitation, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
2 Department of Neurology, University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
DOI : 10.5606/tftrd.2018.2074 Objectives: The aim of the present study was to translate and cross-culturally adapt the Parkinson Fatigue Scale into Turkish and to evaluate its reliability and validity.

Patients and methods: One hundred thirty-eight Parkinson’s disease patients were enrolled. The Turkish version of the Parkinson Fatigue Scale was analyzed for data quality, scaling assumptions, acceptability, reliability, and validity. We used the binary scoring method of the Parkinson Fatigue Scale.

Results: The data quality for the Turkish version of the Parkinson Fatigue Scale was excellent. The scaling assumption was acceptable. The scale provides an acceptable internal consistency (Cronbach’s alpha was 0.955 for a test and 0.941 for a retest, and corrected item-tototal correlations were ranged from 0.478 to 0.849. The test-retest reliability (correlation coefficients were ranged from 0.650 to 0.875) was adequate. Although the total binary score of the Parkinson Fatigue Scale was not associated with demographic and clinical data, it was significantly correlated with some of the clinical rating scale scores, including Unified Parkinson’s Disease Rating Scale, Schwab & England Activities of Daily Living Scale, Hospital Anxiety and Depression Scale, Epworth Sleepness Scale, Pittsburg Sleep Quality Index, 36-item Short Form Health Survey, 39-item Parkinson’s Disease Questionnaire and Fatigue Severity Scale.

Conclusion: The Turkish version of the Parkinson Fatigue Scale is an acceptable, valid and reliable tool for the assessment of fatigue in Parkinson’s disease patients. Keywords : Adaptation; binary scoring method; Parkinson Fatigue Scale; reliability; validity