Table 2.
Demographic characteristics with bacterial etiology of episodes by age and gender (ATP cohort)
| AOM Episodes Characteristics | Categories | Value or n | % |
|---|---|---|---|
| Age (months) | - | ||
| Mean | 28.5 | - | |
| SD | 13.03 | - | |
| Median | 29 | - | |
| Range | 5-55 | - | |
| Age group (months) | |||
| 0-11a | 11 | 11.1% | |
| H. influenzae | 7 | - | |
| S. pneumoniae | 3 | - | |
| S. pyogenes | 0 | - | |
| Others/Negative | 5 | - | |
| 12-23b | 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 | - | |
| 36-47c | 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 | - | |
N = 99; number of episodes
n = number of episodes in a given category
% = n/Number of samples with results available * 100
aIt includes 3 episodes with more than 1 bacterial isolate (S. pneumoniae + H. influenzae+others; S. pneumoniae + others; H. influenzae + others)
bIt includes 1 episode with more than 1 bacterial isolate (S. pneumoniae + others)
cIt includes 1 episode with more than 1 bacterial isolate (S. pneumoniae + H. influenzae)
dIt includes 3 episodes with more than 1 bacterial isolate (S. pneumoniae + H. influenzae+others; S. pneumoniae + others; H. influenzae + others)
eIt includes 2 episodes with more than 1 bacterial isolate (S. pneumoniae + H. influenzae; S. pneumoniae + others)