Development and Validation of the Rhinoplasty Outcomes Evaluation (ROE) Questionnaire: An Analytical Study.

Background: Rhinoplasty Outcome Evaluation (ROE) is an easy-to-use questionnaire that allows comprehensive assessment of rhinoplasty-related patient satisfaction. However, the normal values for this questionnaire are not known. Therefore, we aim to validate the ROE questionnaire adapted to Iranian culture.

Method: In this cross-sectional descriptive study, the statistical population consisted of applicants for cosmetic surgery referred to Shahid Rajaee Hospital, Shiraz, Iran, in the autumn and winter of 2017. Two hundred individuals participated in this research by a convenience sampling method. The questionnaire (ROE) was translated to Persian and backward translated to English by independent medical extern Persian speakers with complete English proficiency. The data were analyzed using SPSS software version 23 using exploratory factor analysis.

Results: The findings showed that the Cronbach's Alpha of composite reliability (CR) and average variance extracted (AVE); overall, values above 0.4 were favorable in this measure. In addition, the AVE ranged from 0.50 to 0.59, which confirmed convergent validity. The AVEs of each factor was higher than the squared correlations and confirmed discriminant validity within the constructs. In the presence of significant factor loadings and composite reliability greater than 0.70, convergence validity was confirmed. Furthermore, the higher AVEs for each factor were compared to the squared correlations to confirm discriminant validity.

Conclusion: The Iranian version of ROE is a valid instrument to assess results in rhinoplasty patients.