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

Table 3 Univariate and multivariate analysis of variables associated with postoperative mortality

	Univariate analysis			Multivariate analysis
	Number of cases	%	P value	T ratio	P value
Sex (Male)	3	42.9	0.406	0.5888	0.557
Age > 65 yr	7	100	0.008	2.960	0.004
Type of surgery (subtotal gastrectomy)	4	57.1	0.810
Kattan score ≥ 100	7	100	0.048	0.9504	0.343
Lymph nodes > 35	6	85.7	0.152	1.745	0.114
Primary site			0.821
Gastroesophageal junction	1	14.3
Upper third	1	14.3
Middle third	1	14.3
Lower third	4	57.1
Depth			0.137	1.231	0.220
Mucosa	0
Submucosa	1	14.3
Muscularis Propria	0
Subserosa (suspected invasion)	2	28.6
Subserosa (certain invasion)	3	42.9
Serosa	0
Adjacent structures	1	14.3
Histological type (Lauren classification)			0.436
Enteric type	3	42.9
Diffuse type	2	28.6
Mixed type	2	28.6
T status			0.031	1.342	0.181
T1a	0
T1b	0
T2	3	42.9
T3	2	28.6
T4a	0
T4b	2	28.6
Stage AJCC/TNM			0.039	0.6371	0.525
IA	0
IB	0
IIA	1	14.3
IIB	2	28.6
IIIA	1	14.3
IIIB	3	42.9
IIIC	0