Table 3.

Comparison of the circulatory and respiratory functions in the two study groups before and after anesthesia (false ± s)$\overline{x}$.

Time	Groups	MAP (mmHg)	Heart rate (beats/min)	Respiratory rate (times/min)	SpO2 (%)
Before anesthesia	The observation group (n = 53)	98.14 ± 4.61	81.54 ± 3.42	17.11 ± 4.02	99.42 ± 0.28
	The control group (n = 53)	97.49 ± 3.76	82.11 ± 4.51	16.38 ± 2.79	99.46 ± 0.33
	t	0.795	0.733	1.086	0.673
	P	0.428	0.465	0.280	0.503
After anesthesia	The observation group (n = 53)	94.77 ± 3.72	78.83 ± 3.76	15.21 ± 4.83	98.42 ± 0.26
	The control group (n = 53)	85.03 ± 4.72	62.11 ± 5.42	12.46 ± 3.21	95.88 ± 0.54
	t	11.799	18.453	3.452	30.853
	P	<0.001	<0.001	<0.001	<0.001