From: An epidemiologic study of factors associated with nasal septum deviation by computed tomography scan: a cross sectional study
Normal(0 < SeD ≤ 5)
Mild(5 < SeD ≤ 10)
Moderate(10 < SeD ≤ 20)
severe(SeD > 20)
Deviated to left
53%
7.6
7.4
4.3
Deviated to right
9.3
12.8
5.6