Evidence-based control of stress response on intraoperative physiological indexes and recovery of patients undergoing gastrointestinal surgery

Table 3 The statistical results of postoperative recovery indexes of two groups of patients, mean ± SD

	Study group	Control group	t	P value
Drainage tube indwelling time, hours	9.2 ± 3.6	14.8 ± 4.9	-14.437	0.000
First exhaust time, hours	19.5 ± 5.8	28.4 ± 7.2	-18.746	0.000
Ambulation time, hours	15.4 ± 4.6	24.2 ± 6.1	-22.325	0.000
Anxiety scores 3 days after operation	51.7 ± 15.2	74.6 ± 18.5	-27.429	0.000
Length of postoperative hospital stay, days	4.7 ± 1.3	6.5 ± 1.8	-8.792	0.000