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Table 3 Incidence of bacterial DNA presence in Middle Ear Effusions

From: One third of middle ear effusions from children undergoing tympanostomy tube placement had multiple bacterial pathogens

  Purulent Effusions Nonpurulent Effusions  
Presence of Bacterial DNA No. of Children (column %) (n = 38) No. of Children (column %) (n = 169) p-value
Haemophilus influenzae
 Single organism 22 (58) 20 (12) <0.001
 Polymicrobial component 3 (8) 20 (12)  
 None 13 (34) 129 (76)  
Streptococcus pneumoniae    
 Single organism 1 (3) 2 (1) 0.79
 Polymicrobial component 1 (3) 6 (4)  
 None 36 (95) 161 (95)  
Alloiococcus otitidis
 Single organism 2 (5) 22 (13) 0.40
 Polymicrobial component 5 (13) 21 (12)  
 None 31 (82) 126 (75)  
Moraxella catarrhalis
 Single organism 3 (8) 11 (7) 0.95
 Polymicrobial component 4 (11) 18 (11)  
 None 31 (82) 140 (83)  
Overall
 Single organism 28 (74) 55 (33) <0.001
 Polymicrobial 5 (13) 31 (18)  
 No Bacteria Detected 5 (13) 83 (49)  
  1. *Percent totals may not add up to 100% due to rounding error.