Table 1.

Characteristics of the subjects and frequencies of gene methylation

	Overall	non-GC	GC	p value*
the number of subjects	527	412	115
mean age ± SD	61.0 ± 13.7	60.0 ± 13.8	66.2 ± 9.7	0.0019
male : female	319 : 208	235 : 177	84:31	0.0018
H.pylori positive ratio	338/527	249/412	89/115	0.00091
DAPK methylated ratio	296/527	201/412	95/115	<0.0001
CDH1 methylated ratio	246/527	150/412	96/115	<0.0001

*: non-GC group vs. GC group.