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Table 4 Mann-Whitney U for T_first and SpO2_Lowest

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

Variable

Median (IQR)

Mann-Whitney U

Control group

Intervention group

P-value

T_first (sec)

39 (19–64)

34 (21–55)

U = 108.5

p = 0.870

SpO2_Lowest (%)

99 (98–100)

100 (100–100)

U = 45

p = 0.004*

  1. T_first = Time to first event, sec = Seconds, SpO2_Lowest = lowest SpO2 observed during airway management, IQR = Interquartile Range
  2. *P-value < 0.05, indicating a significant difference between the groups