Short mucin 1 alleles are associated with low virulent H pylori strains infection

Table 1 Association between MUC1 polymorphisms and H pylori infection according to bacterial genotype

		H pylori positive
		cagA genotypes				vacA s genotypes				vacA m genotypes
	H pylori negative	cagA-	OR	cagA+	OR	s2	OR	s1 or s1/s2	OR	m2	OR	m1 or m1/m2	OR
	n (%)	n (%)	(95% CI)	n (%)	(95% CI)		(95% CI)	n (%)	(95% CI)	n (%)	(95% CI)	n (%)	(95% CI)
MUC1 genotypes
LL	10	8	1	21	1	5	1	24	1	8	1	21	1
	(25.6)	(20.5)	[reference]	(53.8)	[reference]	(12.8)	[reference]	(61.6)	[reference]	(20.5)	[reference]	(53.9)	[reference]
LS	25	30	1.5	47	0.9	24	1.9	53	0.9	34	1.7	43	0.8
	(24.5)	(29.4)	(0.5-4.4)	(46.1)	(0.4-2.2)	(23.5)	(0.6-6.4)	(52.0)	(0.4-2.1)	(33.3)	(0.6-4.9)	(42.2)	(0.3-2.0)
SS	9	22	3.1	33	1.8	16	3.6	39	1.8	23	3.2	32	1.7
	(14.1)	(34.4)	(0.9-10.2)	(51.6)	(0.6-5.0)	(25.0)	(0.9-13.7)	(61.0)	(0.6-5.1)	(35.9)	(1.0-10.7)	(50.0)	(0.6-4.9)

LL: long-long; LS: long-short; SS: short-short; OR: odds ratio CI: confidence interval.