Table 2.

Association between stromal DLL4 expression and clinical factors in 180 gastric cancer

Clinical		(n)	DLL4 positive	DLL4 negative	p value
Factors			(n = 41)	(n = 139)
Sex	Male	128	28	100
	Female	52	13	39	n.s.
Age			63.1	65.7	n.s.
T factor	T1	72	6	66
	T2	54	14	40
	T3	44	17	27	p < 0.01
	T4	10	4	6
N factor	N0	93	15	79	p < 0.01
	N+	87	26	60
Lymphatic invasion	No	78	10	68	p < 0.01
	Yes	102	31	71
Venous invasion	No	102	14	88
	Yes	78	37	51	n.s.
Histology	Differentiated	98	23	75
	Undifferentiated	82	18	64	n.s.