Epidemiological and clinical aspects of nasal polyposis in France; the ORLI group experience.

Nasal polyposis (NP) is a common condition in patients consulting ENT practitioners in France. A multicenter prospective study was performed to evaluate symptoms, demography, environmental factors, personal and family history and associated conditions like asthma, and food or drugs sensitivity (FDS) in patients suffering from NP. In each investigation center assessments were performed at the moment of the initial consultation by the same investigator, then updated with complementary exploration results required by the protocol. The chi 2 test and the Fisher test were used for statistical analysis. In this study 224 patients were included. Males were predominant at 63%. Asthma was found in 45% of cases without relevant sex difference. However, FDS, positive in 31% of the patients, was statistically higher in females than in males (42.9% vs. 24.4%). Severe and major symptoms were more frequently found in the female population. Environment and habitat factors did not appear to be relevant. High rates of NP (52.66%) and asthma (43.58%) were found in the family history. Hereditary factors were suggested and lead us to further study the genetic factors potentially involved in this pathology.