Postoperative mortality and morbidity after D2 lymphadenectomy for gastric cancer: A retrospective cohort study

Table 1 Clinico-pathologic patient characteristics

Characteristics
Sex
Male	108	58.1%
Female	78	41.9%
Age, yr	64.9 ± 12.4	Range 24-90
Primary tumor location
Gastroesophageal junction	22	11.8%
Upper third	25	13.4%
Middle third	58	31.2%
Lower third	81	43.5%
Histological type (Lauren classification)
Enteric type	96	51.6%
Diffuse type	64	34.4%
Mixed type	26	14.0%
Type of resection
Total gastrectomy	88
Subtotal gastrectomy	98
Size, cm	4.4 ± 2.3	Range 0.5-14
Number of lymph nodes retrieved	38.3 ± 10.9	Range 17-98
Number of positive lymph nodes	4.1 ± 3.6	Range 0-39
Operation time, minutes	260 ± 76.1
Length of stay, d	12.7 ± 8.2
T status
T1a	36	19.3%
T1b	4	2.1%
T2	79	42.5%
T3	56	30.1%
T4a	2	1.1%
T4b	9	4.8%
Depth
Mucosa	14	7.5%
Submucosa	31	16.7%
Muscularis propria	37	19.9%
Subserosa (suspected invasion)	46	24.7%
Subserosa (certain invasion)	49	26.3%
Serosa	4	2.1%
Adjacent structures	5	2.7%
N status
N0	74	39.8%
N1	37	19.9%
N2	31	16.7%
N3a	33	17.7%
N3b	11	5.9%
Stage AJCC/TNM
IA	29	15.6%
IB	32	17.2%
IIA	34	18.3%
IIB	35	18.8%
IIIA	23	12.4%
IIIB	26	14.0%
IIIC	7	3.8%

Values are mean ± SD. All the patients were included in all evaluations.