No beneficial effect on survival but a decrease in postoperative complications in patients with rectal cancer undergoing robotic surgery: a retrospective cohort study

Table 1 Clinical and pathological characteristics of patients with rectal adenocarcinoma during hospitalization at enrolment

	Robot (n = 314)	Laparoscopy (n = 220)	P value
Age	58.9 ± 12.4	58.8 ± 12.4	0.989
Male, no. (%)	194 (61.9%)	146 (66.4%)	0.264
BMI (kg/m²)	22.5 ± 3.0	22.3 ± 2.9	0.901
CEA	9.3 ± 27.3	8.7 ± 16.4	0.784
ASA class, no. (%)
1	174 (55.4%)	119 (54.0%)	0.224
2	128 (40.7%)	92 (41.5%)
3	12 (3.8%)	9 (4.1%)
Tumour location from the anal verge (cm)	5.9 ± 2.6	8.5 ± 3.6	< 0.001
With previous abdominal surgery	30 (9.5%)	25 (11.2%)	0.520

Data are expressed as the mean ± standard deviation (SD) or number of patients (percentage). The continuous variables were compared by using Student’s t-test and the Mann–Whitney U test, and the categorical variables were compared by using the χ² test or Fisher’s exact test between the Robot and Laparoscopy groups
Bold values indicate statistical significance
*Defined by magnetic-resonance imaging (MRI)
BMI body mass index, CEA carcinoembryonic antigen, ASA American Society of Anesthesiologists, CRT chemoradiotherapy, CRM circumferential resection margin

ISSN: 1471-2482