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Core lower urinary tract symptom score questionnaire: a psychometric analysis
Kikuo Okamura1, Kyosuke Kimura, Hideki Mizuno
1Department of Urology, National Hospital Organization Higashi Nagoya Hospital, Nagoya, Japan.
The Japanese version of the core lower urinary symptom score questionnaire demonstrates good reliability and validity for both men and women. This validated tool can be used for screening lower urinary tract symptoms in clinical and epidemiological settings.
Area of Science:
- Urology
- Psychometrics
- Medical Informatics
Background:
- Lower urinary tract symptoms (LUTS) affect a significant portion of the population.
- Accurate and reliable assessment tools are crucial for diagnosing and managing LUTS.
- The core lower urinary symptom score (cLUSS) questionnaire is a widely used tool, but its Japanese version requires psychometric validation.
Purpose of the Study:
- To evaluate the reliability and validity of the Japanese version of the cLUSS questionnaire.
- To confirm its suitability as a screening tool for LUTS in Japan.
Main Methods:
- 140 women and 125 men completed the Japanese cLUSS questionnaire.
- Psychometric analyses included Cronbach's alpha for reliability and Spearman's rho for validity.
- Factor analysis was employed to determine the underlying structure of the questionnaire.
Main Results:
- Cronbach's alpha coefficients were 0.733 for women and 0.721 for men, indicating good internal consistency.
- Significant correlations were found between related LUTS questions in both sexes.
- Factor analysis revealed four components: storage symptoms, voiding symptoms, pain, and urinary incontinence.
Conclusions:
- The Japanese version of the cLUSS questionnaire exhibits satisfactory reliability and validity for both genders.
- It is recommended for use as a screening tool for LUTS in clinical practice and epidemiological research in Japan.
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