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Mehmet Akif Sargin, Murat Yassa, Bilge Dogan Taymur, Emrah Ergun, Gizem Akca, Niyazi Tug Department of Obstetrics and Gynecology, Fatih Sultan Mehmet Training and Research Hospital, Istanbul, Turkey Objective: To translate and validate the Michigan Incontinence Severity Index (M-ISI) for its use in Turkish-speaking women with urinary incontinence.Methods: The translation and cross-cultural adaptation were based on international guidelines. Content validity by content validity ratio/content validity index, internal consistency by Cronbach’s alpha, test–retest reliability by Pearson’s correlation, and construct validity by using Spearman rank correlations to show the relationship between individual items and the relevant domains and subdomains were analyzed in 100 female participants with a chief complaint of urinary incontinence. Correlations between the relevant scores of M-ISI and The International Consultation on Incontinence Questionnaire – Short Form scores were analyzed to indicate convergent validity. The Varimax rotation method was used to conduct exploratory factor analysis in order to investigate the factor structures/distribution of M-ISI items.Results: Content validity index and content validity ratio values increased to 0.97 and 1.00, respectively, showing sufficient content validity of the Turkish version of the M-ISI. The analysis formed three factors which was slightly different from original developers. In our proposed three-factor construct, all of the ten items demonstrated high correlations with their subdomains and lower correlations with the other domains, indicating good construct validity. Correlations between stress urinary incontinence and urge urinary incontinence (UUI) scores and The International Consultation on Incontinence Questionnaire – Short Form scores were found high, which indicated convergent validity (r: 0.953, P |
