Table 1.

Demographic and clinical findings of the enrolled pediatric population

	*RIs children
N. evaluated children	91
Age (years) (mean/SD*)	7.4 ± 2.3
1–3 years old	20
3–6 years old	42
6–12 years old	29
Gender Male/Female	47/44
N. of children with family history of atopy/ without family history of atopy	49/42
N. of children with allergy/without allergy	35/56
N. of children exposed smoke/ unexposed smoke	45/46

*RIs recurrent infections, SD standard deviation