title: Validity and reliability of the Turkish version of the Pelvic Floor Distress Inventory-20.
abstract: OBJECTIVE
  The aim of this study was to investigate the reliability and validity of the Turkish version of the Pelvic Floor Distress Inventory-20 (PFDI-20).
  
  
  METHODS
  One hundred and twenty-eight women with pelvic floor disorders, including pelvic organ prolapse, urinary incontinence, and anal incontinence were enrolled in the study. The Turkish version was developed using forward back translation. Construct validity was examined by correlation of clinical methods. Interclass correlation coefficients (ICC) compared the PFDI-20 and subscale scores. Cronbach's alpha assessed the internal consistency of the Turkish version.
  
  
  RESULTS
  The PFDI-20 has three subscales. The test-retest reliability of the PFDI-20 and subscale was excellent (ICC 0.96 to 0.98, p < 0.001). Cronbach's alpha value (0.79) was moderate for the PFDI-20. Construct validity demonstrated that the PFDI-20 and each subscale displayed significant correlation with other clinical methods used (p < 0.05).
  
  
  CONCLUSIONS
  The PFDI-20 is a valid and reliable condition-specific questionnaire for Turkish women with pelvic floor disorders.
authors.affiliation: School of Physical Therapy and Rehabilitation, Ahi Evran University, Kirsehir, Turkey. sydtoprak@hotmail.com
authors.forename: Seyda
authors.initials: S
authors.lastname: Toprak Celenay
authors.forename: Turkan
authors.initials: T
authors.lastname: Akbayrak
authors.forename: Serap
authors.initials: S
authors.lastname: Kaya
authors.forename: Gamze
authors.initials: G
authors.lastname: Ekici
authors.forename: Sinan
authors.initials: S
authors.lastname: Beksac
mesh_terms: D000328:Adult; D005242:Fecal Incontinence / Q000175:diagnosis; D005260:Female; D006801:Humans; D007802:Language; D008875:Middle Aged; D059952:Pelvic Floor Disorders / Q000175:diagnosis*; D056887:Pelvic Organ Prolapse / Q000175:diagnosis; D015203:Reproducibility of Results; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires; D014177:Translations; D014421:Turkey; D014549:Urinary Incontinence / Q000175:diagnosis