Translation, adaptation and validation of COMPASS 31 in bulgarian language for use in patients with multiple sclerosis
Keywords:
multiple sclerosis, autonomic dysfunction, questionnairesAbstract
Introduction: Multiple sclerosis (MS) is a chronic inflammatory demyelinating disease of the central nervous system with a heterogeneous clinical picture. Patients with MS often experience autonomic symptoms. There is no specialized questionnaire for examining autonomic disfunction in MS.
The aim of the study is to translate, adapt and validate a self-assessment questionnaire COMPASS 31 and to use it to assess the frequency and severity of autonomic disfunction in Bulgarian MS patients.
Contingent and methods: Sixty-three MS patients (44 women, 19 men, mean age 41,9 ± 8,9 years) and a control group of 40 healthy subjects (mean age 41.6 ± 8.6 years) took part in the investigation. Fifty-five patients (87%) had relapsing-remitting and 8 (13%) had a secondary-progressive form of the disease. The reliability of COMPASS 31-BG was assessed by internal consistency Cronbach’s α, test-retest reliability and discriminatory validity.
Results: High internal consistency and reliability of COMPASS 31-BG has been established. The Cronbach’s α for the questionnaire is 0,92. No statistical difference was found in the Cronbach’s α for the domains between the Bulgarian and the original version of COMPASS 31, except the "secretory" functions of COMPASS 31-BG. Compared to the translated versions of the questionnaire in Serbian and Croatian languages the Cronbach’s α of the COMPASS 31-BG for the total score of the questionnaire is 0.92, while in the Serbian version it is 0.78 and in the Croatian 0.84, which determines the high reliability of COMPASS 31-BG.
Conclusion: COMPASS 31-BG is a valid and reliable questionnaire to determine the frequency and severity of autonomic symptoms in MS patients.
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Copyright (c) 2018 Petar Damyanov, I. Milanov, S. Ivanova, K. Stambolieva
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