Palliative Gastrectomy Prolongs Survival of Metastatic Gastric Cancer Patients with Normal Preoperative CEA or CA19-9 Values: A Retrospective Cohort Study

Table 1

Baseline characteristics of metastatic gastric cancer patients with or without palliative gastrectomy.

	With gastrectomy; n (%)	Without gastrectomy; n (%)	P value
Number of patients	48	125
Age (year), mean			.836
Gender, M/F	30/18	85/40	.495
PS			.012
0-1	34	62
2–4	14	63
Smoking	19 (11.0)	39 (22.5)	.299
Alcohol drinking	16 (9.3)	30 (17.3)	.220
History of gastric operation	1 (0.6)	3 (1.7)	.900
CEA			.240
CA19-9			.185
Differentiation			.676
Well/moderate	9 (19.1)	24 (22.6)
Poor	38 (80.9)	82 (77.4)
HP			.066
Positive	15 (50.0)	20 (29.0)
Negative	15 (50.0)	49 (71.0)

Chi-square test; ’s t-test.
CEA carcinoembryonic antigen, HP Helicobacter pylori, F female, M male, PS performance status by Eastern Cooperative Oncology Group, SD standard deviation.
data of 143 patients (44 with gastrectomy, 99 without gastrectomy).
data of 120 patients (35 with gastrectomy, 85 without gastrectomy).