Association of XPG rs2094258 polymorphism with gastric cancer prognosis

Table 4 Univariate analysis of associations between influencing factors and 5-year survival of gastric cancer cases

Variable	Classification	n	Death (%)	5-yr survival rate (%)	P-value1
Gender	Male	667	303 (45.4)	54.2	0.399
	Female	289	125 (43.3)	56.1
Age (yr)	≤60	569	235 (41.3)	58.5	0.011
	>60	387	193 (49.9)	49.7
Drinking	No	758	335 (44.2)	55.6	0.259
	Yes	198	93 (47.0)	52.9
Smoking	No	560	244 (43.6)	55.9	0.417
	Yes	396	184 (46.5)	53.3
H. pylori infection	Negative	281	118 (42.0)	58.1	0.284
	Positive	675	310 (45.9)	51.4
TNM stage	I	178	18 (10.1)	87.7	<0.001
	II	366	129 (35.2)	66.9
	III	404	281 (69.6)	29.8
Differentiation	Poor	661	329 (49.8)	50.0	<0.001
	Moderate or high	280	99 (35.4)	66.7
Lymphovascular invasion	Negative	269	57 (21.2)	79.6	<0.001
	Positive	675	371 (55.0)	44.8
Neural invasion	Negative	396	132 (33.3)	67.4	<0.001
	Positive	548	296 (54.0)	45.7
Chemotherapy	No	361	281 (77.8)	22.9	<0.001
	Yes	592	147 (24.8)	75.1

Missing values: 8 for tumor–node–metastasis stage, 15 for differentiation, 12 for lymphovascular invasion and neural invasion, and 3 for chemotherapy.

¹P was calculated by log-rank test. H. pylori: Helicobacter pylori; TNM: Tumor–node–metastasis.