Table 1.

Analysis of staging method and surgical treatment

	Surgical treatment ( n )					P
	Radical resection	Palliative resection	Internal drainage	Surgical exploration	Nonsurgical treatment
B-C classification (n)						0.000
I	19	5	0	2	12
II	17	2	0	0	14
III	24	10	2	3	26
IV	1	1	1	8	7
TNM stage (n)						0.000
I	26	0	0	0
II	25	5	1	1
III	9	12	0	4
IV	1	1	2	8
J-B classification (n)						0.000
T1	38	10	0	2	20
T2	21	5	1	2	29
T3	2	3	2	9	10