Robotic vs laparoscopic abdominoperineal resection for rectal cancer: A propensity score matching cohort study and meta-analysis

Table 2 Operative outcomes and postoperative complication after propensity score matching, n (%)

	Group RS (n = 42)	Group LS (n = 42)	P value
Duration of surgery (min)1	245 (191.5-295)	230 (200-286.3)	0.564
Intraoperative blood loss (ml)1	60 (50-100)	100 (50-200)	0.012
Transfusion	1 (2.4)	0 (0)	0.314
Days to first flatus1	2 (1-2)	2 (2-3)	0.023
Days to first defecation1	3 (2.8-4.3)	3 (2.8-4.3)	0.679
Reoperation	0 (0)	1 (2.4)	0.314
Mortality	0 (0)	0 (0)	-
Intensive care	0 (0)	2 (4.8)	0.152
Conventional open	0 (0)	0 (0)	-
Circumferential resection margin positive	0 (0)	1 (2.4)	0.314
Lymph nodes harvested1	15 (11-18)	13 (9-18.3)	0.309
Perineural invasion	1 (2.4)	1 (2.4)	1.000
Lymphovascular invasion	2 (4.8)	2 (4.8)	1.000
Hospital stay (d)1	9 (7.8-13)	11 (8-18)	0.044
Postoperative complications	17 (40.5)	27 (64.3)	0.029
Urinary infection	2 (4.8)	1 (2.4)	0.557
Pneumonia	1 (2.4)	1 (2.4)	1.000
Ileus	3 (7.1)	3 (7.1)	1.000
Wound infection	5 (11.9)	12 (28.6)	0.057
Intraabdominal infection	5 (11.9)	8 (19)	0.365
Urinary retention	1 (2.4)	2 (4.8)	0.557
Hospital charge (RMB)1	81886.5 (70540.5-109854.2)	70102.8 (60308.6-109415.4)	0.040

¹Values are median (interquartile range: 25^th-75^th percentile).

Values in parentheses are percentages, unless indicated otherwise. RS: Robotic surgery; LS: Laparoscopic surgery.