Gastric Cancer Screening Methods: A Comparative Study of the Chinese New Gastric Cancer Screening Score and Kyoto Classification of Gastritis

Table 3

Helicobacter pylori infection according to the Kyoto Classification of Gastritis.

Risk stratification	No.	H. pylori infection	values	Gastric cancer
				No.	H. pylori+	H. pylori-
Low risk	384	33 (8.59%)	<0.001^a	2	0	2 (100%)
Medium risk	171	105 (61.40%)	<0.001^b	10	7 (70%)	3 (30%)
High risk	147	126 (85.71%)	<0.001^c	28	23 (82.14%)	5 (17.86%)

H. pylori infection: ^alow-risk group vs. medium-risk group; ^bmedium-risk group vs. high-risk group; ^chigh-risk group vs. low-risk group; +: positive; -: negative; No.: case number.