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

Table 5 Clinicopathological factors associated with overall morbidity by univariate and multivariate analysis

	Univariate analysis			Multivariate analysis
	Number of cases	%	P value	T ratio	P value
Sex (Male)	24	60	0.779	0.8443	0.4
Age > 65 yr	22	55	0.575	0.4271	0.670
Type of surgery (subtotal gastrectomy)	29	72.5	0.005	2.526	0.012
Kattan score ≥ 100	32	80	0.026	0.5097	0.611
Lymph nodes > 35	24	60	0.962
Primary site			0.180	0.3756	0.708
Gastroesophageal junction	5	12.5
Upper third	1	2.5
Middle third	7	17.5
Lower third	27	67.5
Depth			0.017	0.2270	0.821
Mucosa	1	2.5
Submucosa	5	12.5
Muscularis propria	5	12.5
Subserosa (suspected invasion)	11	27.5
Serosa	3	7.5
Adjacent structures	4	10.0
Histological type (Lauren classification)			0.265	0.4180	0.677
Enteric	17	42.5
Diffuse	13	32.5
Mixed	10	25.0
T status			0.006	0.6177	0.538
1a	0
1b	5	12.5
2	15	37.5
3	12	30.0
4a	4	10.0
4b	4	10.0
Stage AJCC/TNM			0.018	0.8390	0.403
IA	5	12.5
IB	2	5.0
IIA	6	15.0
IIB	10	25.0
IIIA	7	17.5
IIIB	8	20.0
IIIC	2	5.0

AJCC: American Joint Committee on Cancer.