Long-term outcomes of robot-assisted versus minimally invasive esophagectomy in patients with thoracic esophageal cancer: a propensity score-matched study

Table 3 Location of recurrence and cause of death

	Before matching			After matching
	MIE	RAMIE	P value‡	MIE	RAMIE	P value¶
No. of patients (%)	43	43		26	26
Overall recurrence disease	11(25.6)	10(23.3)	0.802	6(23.1)	6(23.1)	1.000
Anastomoses/gastric conduit	0(0)	0(0)		0(0)	0(0)
lymph nodes	7(16.3)	6(14.0)	0.763	4(15.4)	3(11.5)	1.000
Only inside the resection area	6(14.0)	2(4.7)	0.133	3(11.5)	2(7.7)	1.000
Only outside the resection area	1(2.3)	3(7.0)	0.308	1(3.8)	1(3.8)	1.000
Both	0(0)	1(2.3)	0.500	0(0)	0(0)
Distant	6(14.0)	4(9.3)	0.501	3(11.5)	3(11.5)	1.000
Lung	4(9.3)	1(2.3)	0.180	2(7.7)	1(3.8)	1.000
Liver	1(2.3)	3(7.0)	0.308	0(0)	2(7.7)	0.500
Cerebral	1(2.3)	0(0)	0.500	1(3.8)	0(0)	1.000
Adrenal	0(0)	1(2.3)	0.500	0(0)	0(0)
Dissemination	0(0)	1(2.3)	0.500	0(0)	1(3.8)	1.000
No. of patients
Death	10(23.3)	11(25.6)	0.802	5(19.2)	6(23.1)	0.727
Cancer	8(18.6)	9(20.9)	0.417	3(11.5)	5(19.2)	0.508
Other diseases	2(4.7)	2(4.7)	1.000	2(7.7)	1(3.8)	1.000

MIE: minimally invasive esophagectomy, RAMIE: robot-assisted minimally invasive esophagectomy
‡Pearson’s χ2 test or Fisher’s exact test, ¶McNemar’s test or McNemar’s exact test

ISSN: 1477-7819