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The Egyptian Journal of Otolaryngology

Table 4 Distribution of cases according to the duration of chronic suppurative otitis media and the side of the ear affected

From: Prevalence and clinico-bacteriological aspects of chronic suppurative otitis media at the Renaissance University Hospital in N'Djamena, Chad

Duration (year)

Right ear

Left ear

Bilateral

Total

[0-1[

6

12

2

20

[1-2[

4

3

3

10

[2-3[

4

7

2

13

[3-4[

0

4

2

6

[4-5[

4

1

2

7

[5 and more[

13

5

16

34

Total

31

32

27

90

  1. χ2 = 21.780 ; ddl=10 ; P=0.016 < 0.05
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