Table 3.

Summary of the results of the survival analysis (log-rank test). Overall, the gastric resection group showed a longer survival time. However, gastric resection provided no survival benefit for patients who have distant lymph node or liver metastasis, non-tubular adenocarcinoma, or did not undergo postoperative chemotherapy

Condition	Gastric resection group MST (years)	No-resection group MST (years)	p value (log-rank test)
• Entirely	1.9 (n = 43)	0.9 (n = 28)	<0.01
• Incurable factors
P(+) and/or CY (+), LN(−)H(−)	2.6 (n = 34)	0.8 (n = 21)	<0.01
P(−)CY(−), LN (+) or H (+)	1.7 (n = 7)	1.6 (n = 5)	0.527
• Histological classifications
Tubular adenocarcinoma	1.9 (n = 16)	0.6 (n = 10)	0.042
Poorly differentiated adenocarcinoma	2.6 (n = 28)	1.0 (n = 18)	0.318
Signet cell adenocarcinoma	1.4 (n = 5)	0.8 (n = 6)	0.070
• Postoperative chemotherapy
Chemotherapy (+)	3.0 (n = 36)	0.9 (n = 21)	<0.01
Chemotherapy (−)	0.7 (n = 8)	0.2 (n = 7)	0.589