title: [Applicability of a Serbian version of the "Oral Impacts on Daily Performance (OIDP)" index--assessment of oral health-related quality of life].
abstract: OBJECTIVE
  The Oral Impacts on Daily Performance (OIDP) is a well-known psychometric test used internationally to assess the oral health-related quality of life. The interview and self-administrated questionnaire both assess the degree to which oral health problems have affected the life of the participants over the previous 6 months. The aim of this study was to translate the OIDP index into Serbian and to assess its reliability in practice as its initial verification in the Serbian speaking area.
  
  
  METHODS
  Following an internationally established methods, the OIDP scale was translated using standardized methodology that consisted of forward translation, pilot study and backward translation.
  
  
  RESULTS
  A pilot study was carried out with 44 respondents (24 males i 20 females) using a preliminar Serbian version of the OIDP index. All patients were aged over 65 years. A total of 68.2% of the participants replied that they had at least one OIDP impact on daily life in the past 6 months. These troubles were most prominent during eating (47.7%) and speaking (36.4%), but there is a little impact of troubles in the domain of psychosocial sphere. The corrected item-total correlation coefficients for all items were above the minimum recommended level of 0.20 for including an item in a scale. The standardized Cronbach's alpha coefficient was 0.75.
  
  
  CONCLUSIONS
  Based on these results, we can conclude that this index is suitable for use in everyday practice in Serbian speaking area providing useful information required to assess oral health-related quality of life.
authors.affiliation: Stomatoloski fakultet Univerziteta u Beogradu, Klinika za stomatolosku protetiku, Beograd, Srbija. ivica.stancic@gmail.com
authors.forename: Ivica
authors.initials: I
authors.lastname: Stancić
authors.forename: Jelena
authors.initials: J
authors.lastname: Kulić
authors.forename: Ljiljana
authors.initials: L
authors.lastname: Tihacek-Sojić
authors.forename: Zorica
authors.initials: Z
authors.lastname: Stojanović
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D009909:Oral Health; D011788:Quality of Life; D055771:Serbia; D011795:Surveys and Questionnaires