Table 1.

Characteristics of subjects

	GC	Controls	P
number	268	306
males/females	193/75	184/122	N.S.
Average age (± SD)	65.3 ± 12.0	62.7 ± 13.2	< 0.05a
HP positive rate (%)	86.2	68.0	< 0.05a

GC: gastric cancer, HP: Helicobacter pylori

^aGC vs. Controls, Mann-Whitney U test.