Table 1.

Effect of cagA copy number and cagY recombination on induction of IL-8 secretion in AGS cells, in 4-week mice output colonies

	4-week output colonies
	WT (N = 72)					Il10−/− (N = 82)
predictors	B	SE	β	t	P	B	SE	β	t	P
cagA copy number	0.073	0.014	0.476	5.104	< 0.001	0.048	0.015	0.171	3.180	0.002
cagY recombination (cagY-S = 0, cagY-D = 1)	−0.189	0.042	−0.422	−4.522	< 0.001	−0.626	0.041	−0.815	−15.190	< 0.001
constant	0.798	0.043		18.506	< 0.001	0.908	0.042		21.643	< 0.001
	adjusted R2 = 0.383, F = 23.028, P < .001					adjusted R2 = 0.818, F = 182.741, P < .001

B: unstandardized coefficient; SE: standard error of unstandardized coefficient; β: standardized coefficient. Boldface numbers indicate P values less than 0.05.