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Psychometric Properties of the Hungarian Version of Incontinence Impact Questionnaire Short Form (IIQ-7) Among
Éva Szatmári1,2, Alexandra Makai3,4, Viktória Prémusz3,4,5,6
1Doctoral School of Health Sciences, Faculty of Health Sciences University of Pécs Pécs Hungary.
Background:
Urinary incontinence might have a strong negative influence on quality of life. It can adversely affect physical functioning, social functioning, and emotional well-being. The Incontinence Impact Questionnaire Short Form (IIQ-7) is a grade A measure that assesses the impact of urinary incontinence on quality of life in terms of physical activity, travel, social/relationships, and emotional health.
Objectives:
The aim of this study was to perform the translation and cultural adaptation of the IIQ-7 into Hungarian and to assess its psychometric properties, including structural validity, internal consistency, test-retest reliability, convergent validity, and discriminant validity.
Materials And Methods:
The cross-cultural adaptation of the questionnaire followed the COSMIN guideline and Beaton's six-stage process. The structural validity was evaluated by confirmatory factor analysis. Internal consistency was assessed by Cronbach's alpha value. Test-retest reliability was analyzed using the intraclass correlation coefficient (duration of the test-retest period was 14 days). Convergent validity and discriminant validity were also assessed.
Results:
Confirmatory factor analysis showed acceptable model fit indices (χ 2 = 9.331; χ 2/df = 1.333; Comparative Fit Index = 0.996; Tucker-Lewis Index = 0.998 and root mean-square error approximation = 0.062). The Cronbach alpha was calculated at 0.931. The intraclass correlation coefficient was 0.901, indicating high test-retest reliability. Regarding discriminant validity, there was a significant difference between IIQ-7 scores in the three urinary incontinence subgroups (stress, urge, and mixed urinary incontinence; p = 0.027).
Conclusion:
The Hungarian IIQ-7 demonstrates adequate reliability and validity. The results support the use of this instrument for evaluating the influence of urinary incontinence on quality of life among Hungarian women.
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