Abstract
The objective of this study is to provide a valid and reliable Turkish version of
the original Standardized Cosmesis and Health Nasal Outcomes Survey (SCHNOS). The
SCHNOS questionnaire was translated from English to Turkish using standardized guidelines.
Participants completed the questionnaire twice, with an interval of 7 to 10 days.
Reliability and validity analyses were performed based on these answers. Differences
between the rhinoplasty and control groups, the internal consistency of the instrument
(Cronbach's alpha coefficient), and the strength of association between the two repeated
measures (Pearson's correlation coefficient) were analyzed. Of the 188 included individuals
(106 females, 82 males; mean age 28 ± 8.4 years), 97 were in the rhinoplasty group
and 91 were in the control group. The mean total SCHNOS scores were 0.6 ± 0.4 and
29.4 ± 8.9 in the control and rhinoplasty groups, respectively, and there was a statistically
significant difference in total scores between the groups (p < 0.001). The internal consistency reliability of the scale was found to be highly
significant (Cronbach's alpha = 0.96, with a lower 95% confidence interval of 0.89).
The test–retest correlation value was 0.95 for the total score, and each item had
a strong test–retest correlation, ranging from 0.92 to 0.96. The Turkish version of
the SCHNOS is a valid and reliable scale for evaluating both functional and cosmetic
outcomes in Turkish-speaking patients undergoing rhinoplasty.
Keywords
rhinoplasty - aesthetics - patient-reported outcome - surveys and questionnaires
