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Table 3 Chi square table for outcome in the tracheostomised and non-tracheostomised groups.

From: Early tracheostomy in closed head injuries: experience at a tertiary center in a developing country – a prospective study

 

Discharged

Expired

 

32

18

Tracheostomy

26.5

23.5

 

1.141

1.30

 

21

29

Non Tracheostomy

26.5

23.5

 

1.141

1.30

  1. Degree of freedom = 1
  2. Overall cell chi = 4.88
  3. p = 0.0275 (significant)