Table 6. Baseline characteristics of the subjects for the genetic association and the protein expression study.

Variable	N	Subjects			P
		GC	CAG	CSG
The genetic association study
Total n	1916	n=467	n=700	n=749
Age					<0.001
<60	1292	263	487	542
≥60	624	204	213	207
Gender					<0.001
Male	1109	321	401	387
Female	807	146	299	362
H. pylori-IgG					<0.001
Positive	830	167	420	243
Negative	1086	582	280	224
The protein expression study
Total n	327	109	109	109
Age (years)					0.364
<60	186	59	59	68
≥60	141	50	50	41
Gender					0.84
Male	212	73	70	69
Female	115	36	39	40

CSG: chronic superficial gastritis; CAG: chronic atrophic gastritis; GC: gastric cancer.