Role of 3DCT in laparoscopic total gastrectomy with spleen-preserving splenic lymph node dissection

Table 1 Patient characteristics in group computed tomography with 3D imaging and group NO-computed tomography with 3D imaging

Patient characteristics	Group NO-3DCT	Group 3DCT	P value
No. of patients	81	231
Age (yr)	59.48 ± 10.82	61.34 ± 10.38	0.542
Gender			0.484
Male	58	178
Female	23	52
BMI, kg/m2	21.67 ± 3.24	21.95 ± 2.74	0.273
Tumour size, mm	57.53 ± 23.66	55.76 ± 27.88	0.251
Histology			0.262
Differentiated	29	98
Undifferentiated	52	133
Depth of invasion			0.098
pT1a	5	10
pT1b	6	9
pT2	1	22
pT3	29	87
pT4a	40	103
Lymph node metastasis			0.090
pN0	25	45
pN1	13	37
pN2	12	43
pN3	31	106
TNM stage			0.487
Ia	6	15
Ib	4	12
IIa	15	25
IIb	9	27
IIIa	12	31
IIIB	12	52
IIIC	23	69

3DCT: Computed tomography with 3D imaging; BMI: Body mass index.