Applicability of a Serbian version of the 'Oral Impacts on Daily Performance (OIDP)' index: Assessment of oral health-related quality of life

Abstract

Background/Aim. 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. Conclusion. 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.

Uvod/Cilj. Upitnik Oral Impacts on Daily Performance (OIDP) dobro je poznat psihometrijski test za procenu kvaliteta života u zavisnosti od oralnog zdravlja koji se koristi širom sveta. Primenom ovog upitnika procenjuje se stepen u kojem oralnozdravstveni problemi utiču na svakodnevne aktivnosti ispitanika u poslednjih šest meseci. Cilj ove studije bio je da se OIDP indeks prevede na srpski jezik, proveri njegova pouzdanost u praksi i time verifikuje na našem području. Metode. Prateći internacionalno ustanovljeni metod, OIDP upitnik preveden je korišćenjem standardizovane metodologije koja se sastojala od prevoda upitnika sa engleskog na srpski jezik, povratnog prevoda i pilot studije. Rezultati. U studiju su bila uključena 44 ispitanika (24 muškog i 20 ženskog pola), starosti preko 65 godina, pri čemu je korišćena preliminarna srpska verzija OIDP upitnika. Tegobe u domenu oralnog funkcionisanja najviše su bile izražene tokom jela (47,7%) i govora (36,4%), dok je postojao mali uticaj teškoća u domenu psihosocijalne sfere. Prilikom utvrđivanja interne konzistencije testa uočili smo da je korigovani koeficijent korelacije za sva pitanja bio unutar zadovoljavajućih kriterijuma (> 0,20). Cronbach's alpha koeficijent, koji se izračunavao za pouzdanost testa bio je 0,75. Zaključak. Na osnovu rezultata ovog istraživanja zaključeno je da je ovaj upitnik pogodan za korišćenje u svakodnevnoj praksi na srpskom govornom području i da može pružiti korisne informacije pri proceni kvaliteta života.