Short and long-term outcomes between laparoscopic and open total gastrectomy for advanced gastric cancer after neoadjuvant chemotherapy

Table 2 Pathological characteristics of 136 gastric cancer patients after neoadjuvant chemotherapy

Pathological characteristic	LTG group (n = 61)	OTG group (n = 75)	P value
Tumor diameter, cm (median, IQR)	4.0 (2.5-6.5)	4.0 (2.0-6.0)	0.366
Site of tumor			0.244
Upper 1/3	30	27
Middle 1/3	21	29
Diffused	10	19
ypT			0.751
T0	1	7
T1	5	5
T2	10	14
T3	34	30
T4	11	19
ypN			0.190
N0	19	35
N1	14	11
N2	12	11
N3	16	18
ypTNM			0.300
0	1	7
I	8	17
II	22	16
III	29	34
IV	1	1
Nerve invasion			0.545
Yes	20	21
No	41	54
Vascular invasion			0.982
Yes	18	22
No	43	53
Differentiation			0.616
Well/moderate	27	30
Poor/undifferentiated	34	45

LTG: Laparoscopic total gastrectomy; OTG: Open total gastrectomy; NACT: Neoadjuvant chemotherapy.