Validation the Oral Health Impact Profile (OHIP-14sp) for adults in Spain

ABSTRACT

Objectives:The oral health-related quality of life indicators are increasingly used to measure the impact of oral conditions on qualityof life to complement clinical data in cross-sectional and longitudinal studies. One of the most internationally spread indicatorsis the Oral Health Impact Profile (OHIP-14), but it has still never been applied in Spain. The aim of this study wasto validate the OHIP-14 for use among adults in Spain.Study design:A cross-sectional study was performed in Granada (Spain). A consecutive sample (n=270) of the Regional Government staffvisiting the Employment Risk Prevention Centre for a routine medical check-up participated in this study. All participantsself-completed the piloted OHIP-14sp and were examined according to World Health Organization methodology for caries,periodontal disease and prosthesis. Reliability analyses and validity tests were carried out to evaluate the psychometricproperties of the OHIP-14sp by using two different methods of total scoring (i.e. the Additive and the Simple Count).Results:The reliability coefficient (Cronbach´s alpha) of the OHIP-14sp was above the recommended 0.7 threshold and consideredexcellent (alpha 0.89). Some subjective factors (perceived dental treatment need, complaints about mouth and self-ratedoral satisfaction) were strongly associated with both total scoring methods of the OHIP-14sp, supporting the criterion,construct and convergent validity. Moreover the impact levels were mainly influenced by caries data, e.g., number of teethrequiring extraction (r = 0.21; p<0.01) and number of decayed visible teeth (between premolars) (r = 0.17; p<0.01). (..) (AU)