Table 1. Demographic and clinical features of patients from whom tissue and serum samples were collected.

Tissue samples		Serum samples
Age (mean, range)	71.1, 58–81 years	Gastric cancer (n=51)
Male/female	16/5	Age (mean, range)	65.9, 37–87 years
Stage I	4	Male/female	41/10
Stage II	1	Stage I	25
Stage III	4	Stage II	7
Stage IV	12	Stage III	4
		Stage IV	15
		H. pylori (mean, range)	41.3, 5.0–138.4
		Gastric ulcer/gastritis (n=29)
		Age (mean, range)	40.0, 22–69 years
		Male/female (n)	17/12
		H. pylori (mean, range) (U ml−1)	23.4, 4.7–133.4