Gastroenterology Research and Practice

Research Article

Robot-Assisted versus Laparoscopic-Assisted Gastrectomy among Gastric Cancer Patients: A Retrospective Short-Term Analysis from a Single Institution in China

Table 2

Comparison of two subgroups according to the learning curve of the RAG group.


Clinicopathological features	FH ()		value	SH ()		value
Clinicopathological features			value			value

Gender (male/female)	17/3	5/3	0.311	48/20	19/6	0.606
Age (years)			0.870			0.715
ASA (2/3)	15/5	6/2	1.000	58/10	24/1	0.291
BMI (kg/m²)			0.673			0.897
Comorbidity	2 (10.00%)	1 (12.50%)	1.000	19 (27.94%)	6 (24.00%)	0.704
Resection type (total/distal)	5/15	3/5	0.651	20/48	4/21	0.190
Reconstruction type (B-I/B-II/R-Y)	5/10/5	2/3/3	0.865	14/34/20	8/12/5	0.444
Tumor location (U/M/L)	3/2/15	3/2/3	0.142	13/13/42	4/3/18	0.744
Operation time (min)			0.014			0.006
Estimated blood loss (ml)			0.784			0.003
Tumor size (cm)			0.147			0.121
T stage			1.000			0.065
T1a	4 (20.00%)	2 (25.00%)		14 (20.59%)	11 (44.00%)
T1b	3 (15.00%)	1 (12.50%)		16 (23.53%)	4 (16.00%)
T2	7 (35.00%)	3 (37.50%)		13 (19.12%)	7 (28.00%)
T3	5 (25.00%)	2 (25.00%)		18 (26.47%)	3 (12.00%)
T4a	1 (5.00%)	0 (0.00%)		7 (10.29%)	0 (0.00%)
N stage			0.685			0.550
N0	11 (55.00%)	5 (62.50%)		36 (52.94%)	18 (72.00%)
N1	3 (15.00%)	2 (25.00%)		14 (20.59%)	2 (8.00%)
N2	4 (20.00%)	0 (0.00%)		10 (14.71%)	3 (12.00%)
N3a	2 (10.00%)	1 (12.50%)		7 (10.29%)	2 (8.00%)
N3b	0 (0.00%)	0 (0.00%)		1 (1.47%)	0 (0.00%)
TNM stage			0.951			0.270
Ia	6 (30.00%)	3 (37.50%)		24 (35.29%)	13 (52.00%)
Ib	3 (15.00%)	2 (25.00%)		10 (14.71%)	4 (16.00%)
IIa	5 (25.00%)	1 (12.50%)		12 (17.65%)	3 (12.00%)
IIb	2 (10.00%)	1 (12.50%)		5 (7.35%)	4 (16.00%)
IIIa	2 (10.00%)	0 (0.00%)		9 (13.24%)	0 (0.00%)
IIIb	2 (10.00%)	1 (12.50%)		5 (7.35%)	1 (4.00%)
IIIc	0 (0.00%)	0 (0.00%)		3 (4.41%)	0 (0.00%)
Number of harvested LNs			0.444			0.008
Number of harvested No. 9 LNs			0.663			0.045
Number of harvested suprapancreatic LNs						0.372
Days of the first passing flatus (days)			0.395			0.092
Hospital stay after surgery (days)			0.656			0.728
Postoperative complications	4 (20.00%)	4 (50.00%)	0.172	8 (11.76%)	2 (8.00%)	0.887
30-day readmission after surgery	0 (0.00%)	0 (0.00%)	1.000	2 (2.94%)	1 (4.00%)	1.000

, statistical significance.