Table 1.

Comparison of clinicopathological features of the LSKS-SRLA and LSLA-SRLA groups.

Characteristics	LSKS-SRLA (n = 87)	LSLA-SRLA (n = 159)	P
Age	55.02 ± 10.44	53.99 ± 12.16	0.503
Gender			0.212
Male	51	80
Female	36	79
BMI (kg/m2)	26.39 ± 3.89	26.03 ± 4.04	0.501
pT stage			0.981
T2	8	14
T3	14	27
T4a	65	118
pN stage			0.745
N0	18	28
N1	20	46
N2	32	58
N3	17	27
pTNM stage			0.868
IB	3	7
IIA	8	13
IIB	14	20
IIIA	19	43
IIIB	29	56
IIIC	14	20
Nerve invasion			0.256
Yes	11	29
No	76	130
Lymphovascular invasion			0.435
Yes	16	36
No	71	123
Type of tumor differentiation			0.136
High	34	48
Moderate	39	69
Low	14	42

LSKS-SRLA = laparoscopic splenic regional lymphadenectomy with spleen kept in situ; LSLA-SRLA = laparotomy with spleen lifted out of the abdomen.