Evaluation of Lower Urinary Tract Dysfunction Impact on Quality of Life in Multiple Sclerosis Patients: Russian Translation and Validation of SF-Qualiveen

Abstract

The Short Form Qualiveen (SF-Qualiveen) is an 8-item version of the Qualiveen questionnaire used to evaluate the impact of urinary symptoms on the quality of life in patients with urological dysfunction due to neurological disorders. The questionnaire was never available in the Russian language before. The study is aimed at providing the translation, cultural adaptation, and validation of a Russian version of the SF-Qualiveen for the use in patients with multiple sclerosis (MS). Materials and Methods. The original English language version of the SF-Qualiveen was translated into Russian according to the cultural and linguistic adaptation algorithm. The participants (50 MS patients with neurogenic bladder and 10 relatively healthy volunteers) filled out the finalized Russian version of the SF-Qualiveen and the Neurogenic Bladder Symptom Score (NBSS) twice, 2 weeks apart. The data obtained was used to determine the internal consistency (Cronbach’s alpha), external validity (the Spearman correlation), and test-retest reliability (intraclass correlation coefficient (ICC)) of the questionnaire. Results. The mean SF-Qualiveen total score was 2.51±0.79 in patients with a neurogenic bladder and 0.1±0.02 in the control group (p<0.001). Cronbach’s alpha exceeded 0.9 indicating an excellent internal consistency of the questionnaire. The retest did not reveal any significant differences between the findings. The test-retest reliability was good for all items and domains (ICC 0.81-0.89). The total score demonstrated the highest ICC (0.89). The external validity was verified by a strong correlation demonstrated between the SF-Qualiveen and NBSS scores. Conclusions. The Russian SF-Qualiveen questionnaire is a reliable, valid, and consistent tool for the assessment of a urinary disorder impact on the quality of life in patients with MS.

Translation, cross‐cultural adaptation, and reliability and validity of the Turkish version of the SF‐Qualiveen in people with multiple sclerosis

“…The Turkish version of SF-Qualiveen demonstrated good internal consistency (Cronbach's alpha >0.8), similar to previous validation studies of the SF-Qualiveen. [8][9][10][11] In our study, the domains "bother with limitations" and "feeling" showed good internal consistency and the domains "frequency of limitations" and "fears" showed weak internal consistency. Although similar results are reported in the Dutch version, internal consistency was found to be high in all domains of the scale in the Polish and Russian studies.…”

“…9 The test-retest reliability of the SF-Qualiveen was found to be excellent in our study, as previously reported in the literature. [8][9][10][11] We believe that the reason for the high test-retest results was related to the scale's concise and coherent structure. The patients' low disability levels also contributed to this results.…”

“…For this reason, guidelines and similar studies were examined to determine the sample size. Considering previous recommendations, [16][17][18] sample sizes in other available studies [8][9][10][11] and the total number of questions on the SF-Qualiveen scale, it was planned to include eight patients per question and a total of 64 pwMS.…”

“…8 SF-Qualiveen has been successfully adapted into French, 8 English, 8 Dutch, 9 Polish, 10 and Russian. 11 Although the Turkish validity and reliability study was performed for the Qualiveen scale, 12 validation of SF-Qualiveen is not available in the Turkish language. The purpose of this study was to translate, culturally adapt, and validate the Turkish version of the SF-Qualiveen in pwMS.…”

“…In the following years, SF‐Qualiveen, a shorter and more practical version of the original Qualiveen scale, was developed 8 . SF‐Qualiveen has been successfully adapted into French, 8 English, 8 Dutch, 9 Polish, 10 and Russian 11 . Although the Turkish validity and reliability study was performed for the Qualiveen scale, 12 validation of SF‐Qualiveen is not available in the Turkish language.…”