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Table 1 Characteristics of the patients using the nebulizer equipped (cases, n = 43) or not equipped (controls; n = 46) with nasal aspirator

From: The impact of nasal aspiration with an automatic device on upper and lower respiratory symptoms in wheezing children: a pilot case-control study

  Cases Controls  
n = 43b n = 46b pa
Male gender (n; %) 27 62.8 34 73.9 0.361
Age (months) (median, IQR) 30 (20–60) 35 (18–52) 0.767
Older sibling (n; %) 18 41.9 23 50.0 0.441
Younger sibling (n; %) 4 9.3 8 17.4 0.356
Full breast-feeding (4 month) (n; %) 33 76.7 32 69.6 0.482
Weaning (age in months) (mean; SD) 5.6 1.0 5.4 1.5 0.136
Caucasian (n; %) 32 74.4 36 78.3 0.670
Passive smoke (n; %) 9 20.9 7 15.2 0.585
Cough outside cold (n; %) 27 63 27 59 0.859
Sleep disorders (n; %) 37 86 37 80 0.576
Emergency events (n; %) 22 51 24 52 1.000
Hospitalization (n; %) 6 14 9 20 0.576
Missed school-days (n; %) 35 81 38 83 1.000
Responder (n, %)      
 Mother 26 60 31 67 0.6729
 Father 6 14 7 15
 Both 11 26 8 17
  1. aChi-squared test, when condition were respected, or Fisher test was used to evaluate the association of categorical data between groups, Mann Whitney U test was used to compare quantitative not normally distributed variables between groups (Shapiro-Wilk test was used to assess normality of data)
  2. bSporadic missing values for a few variables examined