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Table 2 Demographic and clinical characteristics of hospitalized, emergency room, and asymptomatic control children in Buenos Aires during 2008–2010

From: Incidence of viral respiratory infections in a prospective cohort of outpatient and hospitalized children aged ≤5 years and its associated cost in Buenos Aires, Argentina

  Hospitalized Emergency room Controls
  N = 89 CEMIC n = 90 Other n = 179 n = 37
Age (months) 10a 13 19 43b
Malesc 57 56 56 70
Preexisting conditions     
Reactive airway diseasec 39 37 43 24
Tobacco exposurec 21 19 16 14
Late preterm birthc 19 13 13 16
Atopic dermatitisc 13 23 23 16
Birth weight <2,500 g 11 6 8 11
Vaccines and breastfeeding     
Influenza vaccine if age >6 monthsc 31 37 50 26
Up-to-date with other vaccinesc 97 100 97 97
Breastfed (months) 5 6 6 6
Sign and Symptom     
Fever >38°Cc 65 83 73  
Coughc 92 89 87  
Tachypneac 84a 45 42  
Retractionsc 76a 24 20  
Wheezingc 70a 41 34  
Vomitingc 15 19 16  
Diarrheac 10 10 7  
Cyanosisc 2 1 1  
Diagnoses     
Rhinitisc 81a 89 91  
Bronchiolitisc 74a 38 31  
Pneumoniac 14a 5 7  
Otitisc 8 9 7  
Pharyngitisc 6a 36 35  
Bronchitisc 1 10 7  
Conjunctivitisc 0a 23 13  
  1. aStatistical difference between hospitalized versus emergency room children in rank-sum or Χ2 test, p < 0.05
  2. bStatistical difference between ill (hospitalized and emergency room) children and control children in Wilcoxon rank-sum test, p < 0.001
  3. cPercentage