Gastric cancer with peritoneal metastases: Efficiency of standard treatment methods

Table 3 Univariate analysis of prognostic factors for 200 intraperitoneally-disseminated gastric cancer patients

	n	1-yr survival, %	Median survival in mo	P value
Gender
Male	121	18.4	5.2	0.4
Female	79	18.5	6.5
Age
< 60	100	21.1	6.5	0.26
60+	100	15.4	5.0
Borrmann’s type
I-II	22	34.3	6.8	0.13
III-IV	178	16.5	5.2
Ascites
Absence	113	29.5	6.9	< 0.0001
Presence	87	1.7	4.0
Histology
G1	5	0	3.6	0.64
G2	12	40	6.8
G3	54	13.5	5.6
G4	98	21.2	5.2
Signet ring	24	9.5	6.5
Mucinous	3	0	3.7
Extraperitoneal metastases
No	165	19.7	6.4	0.031
Yes	34	7.7	4.2
JGCA classification
P0 (Cyt+)	4	0	4.0	< 0.0001
P1	46	47.2	9.8
P2	40	18.8	6.7
P3	110	5.1	4.0
PCI
0 (Cyt+)	4	0	4.0	< 0.0001
1-6	64	39.8	8.5
7-12	25	6.7	4.2
13+	104	5.5	4.1
Lymph node dissection
D0, 1	35	31.4	7.5	0.61
D1+, 2	9	50.0	8.9
Cytoreduction score
CC-0	9	22.2	7.5	0.065
CC-1	19	58.2	13.1
CC-2	16	18.8	4.7

JGCA: Japanese Gastric Cancer Association; PCI: Peritoneal cancer index; CC: Completeness of cytoreduction.