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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)