Lymph node metastasis in gastric cardiac adenocarcinoma in male patients

Table 2 Univariable analysis of lymph nodes metastasis in gastric cardiac cancer and clinicopathological factors

Factors	Total (n = 146)			Female (n = 35)			Male (n = 111)
	LN+	LN-	P value	LN+	LN-	P value	LN+	LN-	P value
Age (yr)			0.927			0.134			0.353
< 60	33	13		5	5		28	8
≥ 60	71	29		19	6		52	23
Tumor size (cm)			0.011			0.554			0.011
< 2	0	2		0	0		0	2
2-5	62	31		15	8		47	23
> 5	42	9		9	3		33	6
Gross appearance			0.000			0.211			0.000
Type 0	0	6		0	2		0	4
Type 1	5	8		2	1		3	7
Type 2	82	23		19	7		63	16
Type 3	10	3		2	0		8	3
Type 4	7	2		1	1		6	1
Tumor differentiation			0.000			0.150			0.000
Differentiated	44	32		9	7		35	25
Undifferentiated	60	10		15	4		45	6
Pathological tumor depth			0.000			0.051			0.000
T1	1	7		0	2		1	5
T2	8	8		2	0		6	8
T3	3	1		0	1		3	0
T4	92	26		22	8		70	18
Lymphatic invasion			0.001			0.102			0.003
Positive	24	0		5	0		19	0
Negative	80	42		19	11		61	31
Venous invasion			0.659			0.324			0.832
Positive	4	1		2	0		2	1
Negative	100	41		22	11		78	30
Nerve invasion			0.966			0.856			0.972
Positive	15	6		5	2		11	4
Negative	88	36		19	9		69	27
Esophageal involvement			0.192			0.912			0.131
Presence	25	6		4	2		21	4
Absence	79	36		20	9		59	27