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Table 5 Difference in lowest SpO2 levels between the two groups

From: Apnoeic oxygenation by nasal cannula during airway management in children undergoing general anaesthesia: a pilot randomised controlled trial

SpO2%

Count (Percentage)

Chi-square

P-value

Control group

Intervention group

SpO2 73%

1 (6.7%)

0 (0%)

16.462

p = 0.002 a,b

SpO2 96%

2 (13.3%)

0 (0%)

SpO2 98%

4 (26.7%)

0 (0%)

SpO2 99%

2 (13.3%)

0 (0%)

SpO2 100%

6 (40%)

15 (100%)

Total

15 (100%)

15 (100%)

  1. SpO2% = Percentage of Oxygen Saturation, N = Number of patients
  2. aLikelihood ratio is used instead of Pearson Chi-Square when an assumption is violated and the table is bigger than 2*2
  3. bP-value < 0.05 which indicates a significant difference between the groups
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Perioperative Medicine

ISSN: 2047-0525