The relationship between otitis media with effusion (OME) and chronic rhinosinusitis with nasal polyposis (CRSwNP) remains unclear. A cross-sectional study of 80 consecutively presenting patients who were diagnosed with CRSwNP was conducted. The aim was to ascertain the prevalence of OME in CRSwNP patients, to determine whether the severity of CRSwNP affected OME, and to identify risk factors for OME in CRSwNP patients.

Inclusion Criteria:

• Patients over 15 years of age
• Presence of chronic rhinosinusitis with nasal polyposis (CRSwNP) previously diagnosed or diagnosed at study's onset by endoscopic nasal examination

Exclusion Criteria:

• Presence of a mucopurulent discharge or granuloma during endoscopic nasal examination

Patients with chronic rhinosinusitis with nasal polyposis (CRSwNP)