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Table 2 Demographic characteristics with bacterial etiology of episodes by age and gender (ATP cohort)

From: Non-typeable Haemophilus influenzae and Streptococcus pneumoniaeas primary causes of acute otitis media in colombian children: a prospective study

AOM Episodes Characteristics Categories Value or n %
Age (months)    -
Mean   28.5 -
SD   13.03 -
Median   29 -
Range   5-55 -
Age group (months)    
0-11 a   11 11.1%
  H. influenzae 7 -
  S. pneumoniae 3 -
  S. pyogenes 0 -
  Others/Negative 5 -
12-23 b   27 27.3%
  H. influenzae 7 -
  S. pneumoniae 9 -
  S. pyogenes 1 -
  Others/Negative 11 -
24-35   27 27.3%
  H. influenzae 5 -
  S. pneumoniae 12 -
  S. pyogenes 1 -
  Others/Negative 9 -
36-47 c   26 26.3%
  H. influenzae 8 -
  S. pneumoniae 6 -
  S. pyogenes 0 -
  Others/Negative 13 -
48-59   8 8.1%
  H. influenzae 4 -
  S. pneumoniae 0 -
  S. pyogenes 0 -
  Others/Negative 4 -
Gender    
Female d   45 45.5%
  H. influenzae 17 -
  S. pneumoniae 14 -
  S. pyogenes 1 -
  Others/Negative 17 -
Male e   54 54.5%
  H. influenzae 14 -
  S. pneumoniae 16 -
  S. pyogenes 1 -
  Others/Negative 25 -
  1. N = 99; number of episodes
  2. n = number of episodes in a given category
  3. % = n/Number of samples with results available * 100
  4. aIt includes 3 episodes with more than 1 bacterial isolate (S. pneumoniae + H. influenzae+others; S. pneumoniae + others; H. influenzae + others)
  5. bIt includes 1 episode with more than 1 bacterial isolate (S. pneumoniae + others)
  6. cIt includes 1 episode with more than 1 bacterial isolate (S. pneumoniae + H. influenzae)
  7. dIt includes 3 episodes with more than 1 bacterial isolate (S. pneumoniae + H. influenzae+others; S. pneumoniae + others; H. influenzae + others)
  8. eIt includes 2 episodes with more than 1 bacterial isolate (S. pneumoniae + H. influenzae; S. pneumoniae + others)