Introduction: Nasal obstruction is a nasal complaint that is not life-threatening but can affect the patient's quality of life while awake or sleeping. One of the anatomical factor that can affect this condition is nasal septum deviation including its angle and type. The purpose of this study was to assess the association between the angle and type of nasal septum deviation with the severity of nasal obstruction.
Method: This study was a retrospective observational analytic study with a cross-sectional design. The CT scan of the subject was analyzed to assess the angle of septum deviation and the Mladina’s 7 type classification of septum deviation. The severity of nasal obstruction assessed by the NOSE questionnaire.
Results: Of the 50 subjects, 27 (54%) men and 23 (46%) woman with an average age of 34.64±12.8 years. Type III deviated nasal septum was the most frequent (28%) followed by type I (14%). The mean deviated nasal septum angle was 20,307,07o. There was a statistically significant association between the deviated nasal septum angle with the higher NOSE score with a strong positive correlation value based on the Pearson correlation test (r=0.771; p < 0.000). There was no statistically significant association between the type of deviated nasal septum with the NOSE score.
Conclusion: There is a statistically significant association between the angle and type of deviated nasal septum with the severity of nasal obstruction based on bivariate analysis. The angle of deviated nasal septum was a statistically significant independent factor of higher NOSE score.