Epstein-Barr virus-associated gastric carcinoma: Evidence of age-dependence among a Mexican population

Table 3 Comparison of demographic and pathologic variables between EBER-1-positive and EBER-1-negative gastric carcinomas¹

	EBER-1+/total	OR	95%CI	P
Gender				0.859
Female	11/157	1	Reference
Male	13/173	0.9	0.4-2.2
Age (yr)				0.013
20-49	0/87	<0.1
50-69	14/170	0.6	0.2-1.3
70-88	10/73	1	Reference
Decade				0.787
1980-1989	11/130	1	Reference
1990-2000	13/200	0.9	0.4-2.1
Tumor site				0.229
Cardia	3/35	1.9	0.5-7.5
Middle	13/137	2.2	0.9-5.5
Antrum	8/156	1	Reference
Lauren classification				0.005
Intestinal	4/141	1	Reference
Diffuse	20/189	4.9	1.6-14.8
Depth				0.273
Early	2/14	2.4	0.5-11.8
Advanced	22/316	1	Reference

¹Odds ratios and 95% confidence intervals were obtained from logistic analysis. Age was adjusted in the analysis of variables other than age.