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Validation of the Polish version of the Unified Dyskinesia Rating Scale (UDysRS)
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Affiliations- Department of Neurology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
- Department of Neurology and Regenerative Medicine, Health Institute dr Boczarska-Jedynak, Oświęcim, Poland
- Department of Neurology, Wroclaw Medical University, Wroclaw, Poland
- Department of Neurological and Psychiatric Nursing, Faculty of Health Sciences, Medical University of Gdansk, Gdansk, Poland
- Department of Neurology and Stroke, St. Adalbert Hospital, Gdansk, Poland
- Department of Neurology, Faculty of Health Sciences, Medical University of Warsaw, Warsaw, Poland
- Department of Neurology and Epileptology, Centre of Postgraduate Medical Education, Orłowski Hospital, Warsaw, Poland
- Department of Extrapyramidal Diseases, Medical University of Łódź, Łódź, Poland
- Department of Neurorehabilitation, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
- Department of Neurology, Jagiellonian University, Collegium Medicum, Krakow, Poland
- Department of Neurology, Faculty of Medicine and Health Sciences, Andrzej Frycz Modrzewski Krakow University, Krakow, Poland
- Department of Biostatistics, Gilead Sciences, Inc., Foster City, California, United States
- Department of Biostatistics & Bioinformatics, Duke University, Durham, North Carolina, United States
- Centre for Networked Biomedical Research in Neurodegenerative Diseases (CIBERNED), Carlos III Institute of Health, Madrid, Spain
- Department of Neurological Sciences, Rush University Medical Centre, Chicago, Illinois, United States
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Abstract
Background. In 2008, the Movement Disorders Society published the Unified Dyskinesia Rating Scale (UDysRS). This has become the established tool for assessing the severity and disability associated with dyskinesia in patients with Parkinson’s Disease (PD). We translated and validated the Polish version of the UDysRS, explored its dimensionality, and compared it to the Spanish version, which is the Reference Standard for UDysRS translations. Material and methods. The UDysRS was translated into Polish by a team led by JS and GO. The back-translation, completed by colleagues fluent in both Polish and English who were not involved in the original translation, was reviewed and approved by the Executive Committee of the MDS Rating Scales Programme. Then the translated version of the UDysRS underwent cognitive pretesting, and the translation was modified based on the results. The approved version was considered to be the Official Working Document of the Polish UDysRS and was tested on 250 Polish PD patients recruited at movement disorder centres. Data was compared to the Reference Standard used for validating UDysRS translations.
Results. The overall factor structure of the Polish version was consistent with that of the Reference Standard version, as evidenced by the high Confirmatory Fit Index score (CFI = 0.98). The Polish UDysRS was thus confirmed to share a common factor structure with the Reference Standard. Conclusions. The Official Polish UDysRS translation is recommended for use in clinical and research settings. Worldwide use of uniform rating measures offers a common ground to study similarities and differences in disease manifestations and progression across cultures.
Abstract
Background. In 2008, the Movement Disorders Society published the Unified Dyskinesia Rating Scale (UDysRS). This has become the established tool for assessing the severity and disability associated with dyskinesia in patients with Parkinson’s Disease (PD). We translated and validated the Polish version of the UDysRS, explored its dimensionality, and compared it to the Spanish version, which is the Reference Standard for UDysRS translations. Material and methods. The UDysRS was translated into Polish by a team led by JS and GO. The back-translation, completed by colleagues fluent in both Polish and English who were not involved in the original translation, was reviewed and approved by the Executive Committee of the MDS Rating Scales Programme. Then the translated version of the UDysRS underwent cognitive pretesting, and the translation was modified based on the results. The approved version was considered to be the Official Working Document of the Polish UDysRS and was tested on 250 Polish PD patients recruited at movement disorder centres. Data was compared to the Reference Standard used for validating UDysRS translations.
Results. The overall factor structure of the Polish version was consistent with that of the Reference Standard version, as evidenced by the high Confirmatory Fit Index score (CFI = 0.98). The Polish UDysRS was thus confirmed to share a common factor structure with the Reference Standard. Conclusions. The Official Polish UDysRS translation is recommended for use in clinical and research settings. Worldwide use of uniform rating measures offers a common ground to study similarities and differences in disease manifestations and progression across cultures.
Keywords
Parkinson’s Disease, dyskinesia, validation, translation, rating scales, UDysRS
About this articleTitle
Validation of the Polish version of the Unified Dyskinesia Rating Scale (UDysRS)
Journal
Neurologia i Neurochirurgia Polska
Issue
Article type
Research Paper
Pages
186-194
Published online
2021-02-02
Page views
1219
Article views/downloads
503
DOI
Pubmed
Bibliographic record
Neurol Neurochir Pol 2021;55(2):186-194.
Keywords
Parkinson’s Disease
dyskinesia
validation
translation
rating scales
UDysRS
Authors
Joanna Siuda
Magdalena Boczarska-Jedynak
Sławomir Budrewicz
Jarosław Dulski
Monika Figura
Urszula Fiszer
Agata Gajos
Agnieszka Gorzkowska
Ewa Koziorowska-Gawron
Dariusz Koziorowski
Anna Krygowska-Wajs
Monika Rudzińska-Bar
Jarosław Sławek
Mateusz Toś
Magdalena Wójcik-Pędziwiatr
Jeffrey Lin
Sheng Luo
Pablo Martinez-Martin
Glenn T. Stebbins
Christopher G. Goetz
Grzegorz Opala
Polish UDysRS Validation Task Force
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