Table 1. Perioperative outcomes.

*statistically significant; SD: standard deviation; statistical test: Pearson’s chi-square test or Fisher's exact test

Variable	Robotic-assisted (N=50)	Laparoscopic (N=50)	P value
Total procedure time, mean ± SD, min	20.7 ± 3.84	18.82 ± 2.135	0.0032*
Conversion to open cholecystectomy, n (%)	0 (0)	0 (0)	-
Intraoperative complications, n (%)	0 (0)	0 (0)	-
Surgical site infection, n (%)	1 (2)	3 (6)	0.3099
Postoperative complications, n (%)	0 (0)	1 (2)	0.3173
Clavien-Dindo classification of postoperative complications, n (%) Grade I	0 (0)	1 (2)	0.3173
Length of hospital stay, mean, days, mean	1	1	-
Pain score at 24 hours postsurgery, mean ± SD (measured by the 0 to 10 numerical rating scale, NRS)	1.78 ± 0.68	3.3 ± 1.2	<0.001*
Need for opioid analgesics, n (%)	0 (0)	10 (20)	0.0009*
Readmission within 30 days after surgery, n (%)	0 (0)	0 (0)	-
Reoperations, n (%)	0 (0)	1 (2)	0.3173
30-day mortality, n (%)	0 (0)	0 (0)	-