Reliability and validity of the Japanese version of the pelvic floor distress inventory-short form 20
Abstract
Introduction and hypothesis The aim of this study was to translate the Pelvic Floor Distress Inventory-Short Form 20 (PFDI-20) into Japanese and test its reliability and validity among Japanese women.Methods Fifty-nine women with and without pelvic floor disorders (age 55.8 ± 16.8 years, mean ± SD) completed the Japanese PFDI-20 (J-PFDI-20) questionnaire at baseline and 2 weeks later. Intraclass correlation coefficients (ICC) and the Bland and Altman method for test-retest reliability and Cronbach's alpha for internal consistency of the J-PFDI-20 were used. Scores of total and subscales were compared between women with and without pelvic floor disorders for known-groups validity. Spearman's correlation coefficients between the J-PFDI-20 and the severity of pelvic floor disorders and Urinary Incontinence Quality of Life Scale (I-QOL) were used for construct validity.Results The PFDI-20 was successfully translated from English into Japanese with face validity through rigorous cross-cultural validation. Test-retest reliability of the J-PFDI-20 and three subscales was good to excellent (ICC=0.77-0.90). The Bland and Altman analysis showed that differences between the first and second scores of total J-PFDI-20 and its subscales were not significantly different from 0 and largely fell within the range of 0 ± 1.96 SD. Cronbach's alpha values were 0.52-0.83. Analysis of known-groups validity showed differences in scores of the J-PFDI-20 between women with and without pelvic floor disorders. Acceptable construct validity was found in J-PFDI-20 total and subscale scores with positive correlations to severity of pelvic floor disorders (ρ>0.35) and negative correlations to I-QOL (ρ<-0.39).Conclusions The results suggest that the J-PFDI-20 is a reliable and valid condition-specific quality of life instrument for women with pelvic floor disorders.
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Patients completed validated questionnaires, including the PFDI-20, during the 1-year follow-up evaluation.
“During the 1‐year follow‐up evaluation, the patients completed validated questionnaires, including the PFDI‐20.”
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- Authors
- Yoshida, M., Murayama, R., Ota, E., Nakata, M., Kozuma, S., & Homma, Y.
- Affiliations
- The University of Tokyo (JP)
- University of Tokyo Hospital (JP)
- Mitsui Memorial Hospital (JP)
- Corresponding author
- Yoshida, Mikako
- Venue
- International Urogynecology Journal
- Published
- 2012-10-19
- Volume
- 24
- Issue
- 6
- Pages
- 1039-1046
- ISSN
- 0937-3462 (ISSN-L)
- 1433-3023
- OpenAlex
- W2126468883
- Cited by
- 32
- References
- 23
- Citations by year
- 2025: 4 · 2024: 3 · 2023: 5 · 2022: 6 · 2021: 3 · 2019: 1 · 2018: 4 · 2017: 3 · 2015: 1 · 2014: 1 · 2013: 1
- FWCI
- 0.73
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- International Urogynecology Journal (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Rheumatology › Pelvic floor disorders treatments
- Health Sciences › Medicine › Urology › Urinary Bladder and Prostate Research
- Health Sciences › Medicine › Psychiatry and Mental health › Sexual function and dysfunction studies
- Keywords
- Japanese translation, cross-cultural validation, pelvic floor dysfunction, quality of life, test-retest reliability, construct validity, urinary incontinence, women
- MeSH terms
- Adult, Aged, Culture, Fecal Incontinence, Female, Humans, Language, Middle Aged, Quality of Life, Surveys and Questionnaires, Translating, Urinary Incontinence, Reproducibility of Results, Asian People, Pelvic Floor Disorders
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