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Table 3 Clinical features of influenza A/H1N1v infection according to age, co-morbidity and PICU admission among hospitalized children

From: Pandemic A/H1N1v influenza 2009 in hospitalized children: a multicenter Belgian survey

  Clinical presentation
  Pneumonia   Hypoxemia   Seizures   GI* manifestations  
  n (%)   n (%)   n (%)   n (%)  
Global cohort (N = 215) 74 (34)   58 (27)   21 (10)   78 (36)  
Age groups (months)         
   < 3 months (n = 41) 7 (17) p = 0.03 4 (10) p = 0.01 1 (2) p = 0.19 13 (32) p = 0.74
   3-24 months (n = 59) 23 (39)   15 (25)   6 (10)   21 (36)  
   > 24 months (n = 115) 44 (38)   39 (34)   14 (12)   44 (38)  
Co-morbidity         
   yes (n = 101) 32 (32) p = 0.4 34 (34) p = 0.03 10 (10) p = 0.95 33 (33) p = 0.3
   no (n = 114) 42 (37)   24 (21)   11 (10)   45 (39)  
PICU admission         
   yes (n = 21) 15 (71) p < 0.001 18 (86) p < 0.001 0 (0) p = 0.2 5 (24) p = 0.2
   no (n = 194) 59 (30)   40 (21)   21 (11)   73 (38)  
  1. Legend:*GI = gastrointestinal manifestations, including nausea, vomiting and/or diarrhea