Intracorporeal esophagojejunostomy using the double stapling technique after laparoscopic total gastrectomy: A retrospective case-series study

Table 3 Histopathologic data

Variables	n (%)
Tumor invasion depth
Mucosa (T1a)	19 (32.8)
Submucosa (T1b)	31 (53.4)
Muscle propria (T2)	4 (6.9)
Subserosa (T3)	1 (1.7)
Serosa exposed (T4)	3 (5.2)
Nodal metastasis
0 (N0)	52 (89.7)
1-2 (N1)	3 (5.2)
3-7 (N2)	2 (3.4)
> 8 (N3)	1 (1.7)
TNM1 stage
IA	46 (79.3)
IB	4 (6.9)
IIA	3 (5.2)
IIB	5 (8.6)
Total number of resected lymph nodes	55.1 ± 22.0
Proximal margin (cm)	2.7 ± 2.8

¹TNM staging was performed according to the AJCC/UICC 7^th edition. TNM: Tumor node metastasis.