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Table 1 Demographic characteristics of cases and controls

From: Vitamin D level in Egyptian children with otitis media with effusion

Variable

Cases (n=50)

Controls (n=50)

P-value

Age (months)

53.4 ± 9.2

65.0 ± 13.2

<0.001*

Gender

  

0.689§

M

29 (58.0%)

27 (54.0%)

 

F

21 (42.0%)

23 (46.0%)

 

Surgical intervention

AT

0 (0.0%)

  

AT with bilateral VT insertion

40 (80.0%)

  

AT with unilateral VT insertion

10 (20.0%)

  
  1. Data are mean ± standard deviation or number (percentage)
  2. AT adenotonsillectomy, VT ventilation tube
  3. *Unpaired t-test
  4. §Chi-squared test for trend