Validation of a russian-language version of the VEINES-QOL/Sym questionnaire in patients with rheumatic diseases and lower extremity chronic venous diseases

Objective: to assess the psychometric properties (reliability, sensitivity, and validity) of a Russian-language version of the VEINES-QOL/Sym questionnaire in patients with rheumatic diseases and lower extremity chronic venous diseases. Subjects and methods. The investigation enrolled 89 patients (66 (74%) women and 23 (26%) men) (their mean age was 46.3+13.4 years) with rheumatic diseases. The majority (n=62 (70%)) of patients were recorded to have a history of one case of venous thrombosis of the lower extremity; the others (n=27 (30%)) had more than one case of thrombosis. To calculate the scores the VEINES-QOL/Sym questionnaire, a standard method proposed by its authors was used. The patients filled out the VEINES-QOL/Sym questionnaire thrice: on inclusion, at 2 weeks, and at 6 months. Results and discussion. The internal consistency (Cronbach’s a coefficient) of VEINES-QOL and VEINES-Sym was equal to 0.973 and 0.975, respectively, which reflects the high level of reliability. The coefficient к varied from 0.825 to 1, which indicates good reproducibility (p