Validation of the Hungarian Version of the International Consultation on Incontinence Modular Questionnaire on Female Lower Urinary Tract Symptoms (ICIQ-FLUTS)

<b>Objectives:</b> Urinary incontinence (UI) is a prevalent condition that significantly impacts the quality of life. This study aimed to validate the Hungarian version of the International Consultation on Incontinence Questionnaire-Female Lower Urinary Tract Symptoms (ICIQ-FLUTS) and assess its psychometric properties in the context of the Hungarian population. <b>Study design:</b> A cross-sectional study involved 215 Hungarian-speaking women with a mean age of 67.6 ± 11.9 years. <b>Main outcome measure:</b> Participants were administered both the ICIQ-FLUTS and the International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF). The psychometric analysis included test-retest reliability, convergent validity, and internal consistency. <b>Results:</b> The Hungarian version of ICIQ-FLUTS demonstrated strong psychometric properties. The test-retest reliability analysis showed a high intraclass correlation coefficient (ICC = 0.921), indicating excellent agreement between measurements over a 14-day interval. Convergent validity was supported by a strong positive correlation between the total scores of ICIQ-FLUTS and ICIQ-SF (ρ = 0.686, <i>p</i> < 0.001), emphasizing shared underlying constructs. Furthermore, the ICIQ-FLUTS questionnaire exhibited good internal consistency, with a Cronbach's α coefficient of 0.862. <b>Conclusions:</b> This study successfully validated the Hungarian version of the ICIQ-FLUTS questionnaire and demonstrated its robust psychometric properties. This tool will enable healthcare practitioners and researchers to effectively assess and address UI's impact on their quality of life.