Table 2.

Perioperative clinical outcomes and postoperative complications

	Laparoscopic anterior resection (n = 146)	Robotic anterior resection (n = 34)	p value
Perioperative clinical outcomes
Mean total operation time: min (range)	217.6 ± 70.7 (82–400)	252.5 ± 94.9 (117–460)	0.016
Mean intraoperative bleeding: ml (range)	78.2 ± 12.3 (0–600)	60.3 ± 27.0 (0–800)	0.772
Mean time to 1st gas passing: days (range)	2.52 ± 0.8 (1–5)	2.21 ± 0.9 (1–5)	0.040
Mean time to 1st stool passing: days (range)	4.42 ± 0.9 (2–7)	3.85 ± 0.2 (2–7)	0.003
Mean time to soft diet:days (range)	5.2 ± 1.3 (3–16)	4.5 ± 1.2 (2–7)	0.009
Mean hospital stay: (range)	6.2 ± 1.3 (4–17)	5.5 ± 1.6 (3–8)	0.005
Conversion
Postoperative complications: n (%)
Mild complications
Chyloperitoneum	4 (2.7)	0 (0)
Ileus	1 (0.7)	2 (5.9)
Wound infection	2 (1.4)	0 (0)
Voiding difficulty	5 (3.4)	0 (0)
Moderate complications
Pneumonia	0 (0)	0 (0)
Postoperative bleeding	1 (0.7)	0 (0)
Severe complications
Intraabdominal abscess	0 (0)	0 (0)
Anastomotic leakage	2 (1.4)	0 (0)
Deaths (30-day mortality)	0 (0)	0 (0)
Total no. of complications	15 (10.3)	2 (5.9)	0.281
Total no. of patients with complications	15 (10.3)	2 (5.9)	0.281
Readmission due to complications	1 (0.7)	1 (2.9)	0.258