International study of the incidence of particular types of septal deformities in chronic rhinosinusitis patients: the outcomes from five countries

Chronic rhinosinusitis (CRS) may be more frequent in patients with particular types of septal deformities. The aim of this article was to investigate the incidence of particular types of septal deformities in adult CRS patients and healthy volunteers in various countries to determine whether some of them are more frequent in those groups.