ArticleInternational urogynecology journal2026
Incontinence Severity Index (ISI): Translation and Validation Study of the Russian Version.
Article in International urogynecology journal, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introduction and hypothesisThe aims of the study were the translation, cultural adaptation, and validation of the Incontinence Severity Index (ISI) for a Russian population.
methodsFollowing a forward- and back-translation of the original English ISI questionnaire into Russian (ISI-R), the translated questionnaire was reviewed by a group of patients as well as an expert panel. Women with urinary incontinence over 18 who gave informed consent were recruited in a validation study. They completed ISI-R and International Consultation on Incontinence Questionnaire ICIQ-UI Short Form (ICIQ-UI SF), as well as a sociodemographic checklist, and performed the 1-h pad weight (pad) test to measure urine leakage using pre-weighed absorbent pads. The psychometric properties of ISI-R were assessed.
resultsA total of 213 women with urinary incontinence were included in the study. Satisfactory content validity of the ISI-R was shown: content validity indices for comprehensibility were 0.90 for patients and 1.0 for clinicians. Acceptable internal consistency was observed: a Cronbach's alpha value of 0.62 and an interclass correlation coefficient of 0.70. Spearman's correlation coefficient was 0.42 between ISI-R score and pad test results, and 0.41 between four-level severity index and pad test results (p < 0.001). Strong significant positive correlation between the ISI-R score and the total ICIQ-UI SF score was obtained (0.82, p < 0.001). Moderate agreement between the pad test and the ISI-R was shown-quadratic weighted Kappa coefficient 0.425 (p < 0.01). Significant sensitivity to changes was demonstrated by assessing the changes in ISI-R scores before and 12 weeks after surgery.
conclusionsThe ISI-R is an informative instrument to be used in clinical practice and research to assess and document the severity of stress urinary incontinence in women, particularly those undergoing surgery.
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