title: Development and validation of the Polish version of the Female Sexual Function Index in the Polish population of females.
abstract: BACKGROUND
  Unlike male sexual function, which is relatively easy to assess, female sexual function is still a diagnostic challenge. Although numerous new measurements for female sexual dysfunction (FSD) have recently been developed, the Female Sexual Function Index (FSFI) remains the gold standard for screening. It has been validated in more than 30 countries. The FSFI has been used in several studies conducted in Poland, but it has never been standardized for Polish women.
  
  
  OBJECTIVE
  The aim of this study was to develop a Polish version of the FSFI (PL-FSFI).
  
  
  METHODS
  In total, 189 women aged 18-55 years were included in the study. Eighty-five were diagnosed with FSD as per the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM IV-TR) criteria; 104 women did not have FSD. All subjects completed the PL-FSFI at baseline (day 0), day 7, and day 28.
  
  
  METHODS
  Test-retest reliability was determined by Pearson's product-moment correlations. Reliability was tested using Cronbach's α coefficient. Construct validity was evaluated by principal component analysis using varimax rotation and factor analysis. Discriminant validity was assessed with between-groups analysis of variance.
  
  
  RESULTS
  All domains of the PL-FSFI demonstrated satisfactory internal consistencies, with Cronbach's α value of >0.70 for the entire sample. The test-retest reliability demonstrated good-to-excellent agreement between the assessment points. Based on principal component analysis, a 5-factor model was established that explained 83.62% of the total variance. Domain intercorrelations of the PL-FSFI ranged from 0.37-0.77. The optimal PL-FSFI cutoff score was 27.50, with 87.1% sensitivity and 83.1% specificity.
  
  
  CONCLUSIONS
  The PL-FSFI is a reliable questionnaire with good psychometric and discriminative validity. Therefore, it can be used as a tool for preliminary screening for FSD among Polish women.
authors.affiliation: Department of Gynecology and Obstetrics, Specialist Teaching Hospital in Tychy, Tychy, Poland. krzysnowosilcow@yahoo.com
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Nowosielski
authors.forename: Beata
authors.initials: B
authors.lastname: Wróbel
authors.forename: Urszula
authors.initials: U
authors.lastname: Sioma-Markowska
authors.forename: Ryszard
authors.initials: R
authors.lastname: Poręba
mesh_terms: D000293:Adolescent; D000328:Adult; D003431:Cross-Cultural Comparison; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008393:Marriage / Q000523:psychology; D008403:Mass Screening / Q000706:statistics & numerical data; D008875:Middle Aged; D011044:Poland; D011594:Psychometrics / Q000706:statistics & numerical data*; D015203:Reproducibility of Results; D012735:Sexual Dysfunction, Physiological / Q000175:diagnosis* / Q000453:epidemiology; D020018:Sexual Dysfunctions, Psychological / Q000175:diagnosis* / Q000453:epidemiology; D011795:Surveys and Questionnaires; D014175:Translating; D055815:Young Adult