Regular group

Improved group

P value*

Heart rate

Pre-suction

100.9 ± 12.1

100.9 ± 9.6

0.980

Post-suction

119.7 ± 12.2

115.6 ± 9.9

0.196

Increased level

18.8 ± 3.6

14.7 ± 2.7

0.000

Breathing

Pre-suction

25.0 ± 3.1

25.5 ± 3.3

0.607

Post-suction

27.9 ± 3.6

27.7 ± 3.4

0.812

Increased level

2.9 ± 1.1

2.2 ± 0.9

0.017

Oxygen saturation

Pre-suction

91.5 ± 1.4

91.6 ± 0.8

0.806

Post-suction

88.3 ± 2.2

89.4 ± 1.6

0.054

Decreased level

3.2 ± 1.4

2.2 ± 1.1

0.009