Table 1 clinical characteristics of the study population

Males/females

19/11

Mean age (years)

52 ± 11.6

Family history for allergic diseases

11/30 (37 %)

Atopy (prick test and specific IgE to common aeroallergens)

18/30 (60 %)

 New diagnosis

11/18 (61 %)

Asthma

16/30 (53 %)

 New diagnosis

9/16 (56 %)

NSAIDs hypersensitivity

10/30 (33 %)

Relapsing forms

21/30 (70 %)

Blood hypereosinophilia before FESS

10/29 (34 %)