Clinical effect of laparoscopic radical resection of colorectal cancer based on propensity score matching

Table 3 Comparison of perioperative parameters between the two groups

Parameters	Control group (n = 30)	Observation group (n = 30)	t	P value
Surgery time (min, mean ± SD)	157.70 ± 14.14	203.13 ± 20.07	10.138	< 0.001
Intraoperative blood loss (mL, mean ± SD)	172.07 ± 26.94	131.93 ± 21.84	6.338	< 0.001
Number of lymph nodes dissected (piece, mean ± SD)	17.73 ± 2.48	17.17 ± 3.08	0.786	0.435
First ambulation time (h, mean ± SD)	47.60 ± 5.37	38.73 ± 6.76	5.626	< 0.001
Bowel sounds recovery time (h, mean ± SD)	67.80 ± 8.06	65.97 ± 6.61	0.963	0.339
First anal exhaust time (h, mean ± SD)	78.33 ± 16.01	67.73 ± 18.20	2.396	0.020
Gastric tube indwelling time, d, M (P25-P75)	4.00 (4.00, 5.00)	3.50 (3.00, 4.00)	4.621	< 0.001
Rate of complications, n (%)	5 (16.67)	3 (10.00)	0.144	0.704

M: Median