From: Effects of Pidotimod on recurrent respiratory infections in children with Down syndrome: a retrospective Italian study
N
%
Age, years [mean, SD]
5.7
2.9
Gender, male
17
51.5
Attending School
31
93.9
Attending school siblings
23
69.7
Parental smokers
13
39.4
Influenza immunizationa
14
51.9