Table 1. Characteristics of study population.

		Pathological diagnoses
Characteristics	Normal/non-atrophicgastritis	Atrophic gastritis	Intestinal metaplasia	Dysplasia	Gastric cancer
Age
= <39	299 (28.2%)	73 (22.9%)	92 (10.8%)	12 (10.8%)	11 (6.1%)
40–49	423 (39.9%)	113 (35.4%)	169 (30.5%)	38 (34.2%)	26 (14.4%)
50–59	233 (22.0%)	91 (28.5%)	175 (31.6%)	29 (26.1%)	42 (23.3%)
> = 60	106 (10.0%)	42 (13.2%)	118 (21.3%)	32 (28.8%)	101 (56.1%)
Gender
Female	575 (54.2%)	174 (54.6%)	277 (50.0%)	57 (51.4%)	53 (29.4%)
Male	486 (45.8%)	145 (45.5%)	277 (50.0%)	54 (48.7%)	127 (70.6%)
H. pylori (HP) status
No HP	111 (10.5%)	27 (8.5%)	37 (6.7%)	5 (4.5%)	7 (3.9%)
cagA-negative HP	387 (36.5%)	76 (23.8%)	82 (14.8%)	14 (12.6%)	45 (25.0%)
cagA-positive HP	563 (53.1%)	216 (67.7%)	435 (78.5%)	92 (82.9%)	128 (71.1%)
Cancer subtypes
Intestinal	–	–	–	–	103 (57.2%)
Diffuse/other	–	–	–	–	77 (42.8%)
Non-cardia	–	–	–	–	162 (90.0%)
Cardia	–	–	–	–	18 (10.0%)
Total	1061	319	554	111	180