title: Classification and prevalence of nasal septal deformity in Koreans according to two classification systems.
abstract: CONCLUSIONS
  Guyuron type 2 and Mladina type 1 were the most common types of nasal septal deformity (NSD) in Koreans. The Guyuron classification showed a higher concordance rate with computed tomography (CT) findings than the Mladina classification.
  
  
  OBJECTIVE
  The purpose of this study was to classify the NSD according to the Guyuron and Mladina classifications, and to evaluate the correlation between anterior rhinoscopy and CT findings.
  
  
  METHODS
  Each septum of the patients who visited Seoul National University Hospital Health Care Center was classified according to the Guyuron and Mladina classifications. For the patients who underwent septoplasty, the correlation of NSD between anterior rhinoscopy and CT findings was evaluated.
  
  
  RESULTS
  Of 970 patients, 50.3% had NSD. According to the Guyuron and Mladina classifications, type 2 (41.4%) and type 1 (35.4%) were most common, respectively. Among 64 patients who underwent septoplasty, the concordance rates with CT findings were 71.9% for the Guyuron classification and 50% for the Mladina classification. This difference was statistically significant (chi-squared test, p = 0.026).
authors.affiliation: Department of Otorhinolaryngology, Seoul National University College of Medicine, 28 Yongon-dong, Chongno-gu, Seoul, Korea.
authors.forename: Jee Hye
authors.initials: JH
authors.lastname: Wee
authors.forename: Dong Wook
authors.initials: DW
authors.lastname: Kim
authors.forename: Ji-Eun
authors.initials: JE
authors.lastname: Lee
authors.forename: Chae-Seo
authors.initials: CS
authors.lastname: Rhee
authors.forename: Chul Hee
authors.initials: CH
authors.lastname: Lee
authors.forename: Yang-Gi
authors.initials: YG
authors.lastname: Min
authors.forename: Dong-Young
authors.initials: DY
authors.lastname: Kim
mesh_terms: D006801:Humans; D009300:Nasal Septum / Q000002:abnormalities*; D009668:Nose Diseases / Q000145:classification* / Q000175:diagnosis / Q000453:epidemiology*; D015995:Prevalence; D011446:Prospective Studies; D056910:Republic of Korea / Q000453:epidemiology