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Table 1 Characteristics of the study population (N = 33)

From: Effects of Pidotimod on recurrent respiratory infections in children with Down syndrome: a retrospective Italian study

 N%
Age, years [mean, SD]5.72.9
Gender, male1751.5
Attending School3193.9
Attending school siblings2369.7
Parental smokers1339.4
Influenza immunizationa1451.9
  1. a We found this information only for 27 patients, thus the
  2. percentage was calculated on 27 subjects (14/27, 51,9%)