Mg group

Control group

Statistical test (ZMWU)

P value

Median

IQR

Median

IQR

HR

Baseline

78.5

77.0 - 84.0

76.5

74.0 - 78.0

2.54

0.011*

Post MID

73.5

71.0 - 74.0

72.5

71.0 - 75.0

0.14

0.89

Post nebuliz

71.0

70.0 - 75.0

74.5

73.0 - 77.0

2.24

0.025*

Post induction

79.0

77.0 - 82.0

79.0

73.0 - 79.0

2.17

0.03*

Post oti

75.5

75.0 - 80.0

80.5

80.0 - 81.0

4.33

<0.001**

3 min later

70.0

68.0 - 71.0

75.0

75.0 - 77.0

6.59

<0.001**

6 min later

66.5

65.0 - 68.0

74.0

73.0 - 75.0

6.49

<0.001**