Clinicopathological features of early gastric cancer with duodenal invasion

Table 2 Clinicopathological characteristics of EGC with duodenal invasion

Characteristics	No. of patients	Length of duodenal invasion (mm)	P value
Age (yr)			0.276
< 60	13	7.2
> 60	16	11.7
Gender			0.029
Male	16	5.3
Female	13	15.2
Gross appearance			0.046
Depressed	16	4.3
Elevated	15	10.9
Tumor size (mm)			0.049
< 60	23	5.3
> 60	12	14.8
Depth of invasion			0.836
Mucosa	16	8.3
Submucosa	25	7.6
Histological type			0.088
Intestinal	28	9.1
Diffuse	13	5.1
Lymph node metastasis			0.006
Negative	32	8.9
Positive	4	3
Preoperative diagnosis of duodenal invasion			0.001
Possible	8	24.3
Impossible	16	3.6