Role of the HLA-DQ locus in the development of chronic gastritis and gastric carcinoma in Mexican patients

Table 3 HLA-DQB1 allele frequencies in Mexican patients with H pylori-associated chronic gastritis according to CagA status

DQB1*	CagA +		CagA -		Healthy
	n = 28		n = 20		n = 198
	n	af	n	af	n	af
*0301	7	0.250	3	0.150	34	0.171
*0302	3	0.107	5	0.250	48	0.242
*0401	3	0.107	8	0.400ab	0	0
*0201	2	0.071	1	0.050	33	0.166
*0304	2	0.071	0	0	0	0
*0501	0	0	5	0.250cd	12	0.060
*0602	1	0.035	0	0	15	0.075
*0601	1	0.035	0	0	0	0
*0603	0	0	1	0.050	4	0.020
*0604	1	0.035	0	0	3	0.015
*0303	0	0	1	0.038	0	0

af: Allele frequencies;

^aP = 1 × 10^-7, vs healthy individuals, OR = 17.5, 95% CI: 10.1–30.31;

^bP = 0.01, vs CagA + , OR= 5.67, 95% CI: 1.22-28.07;

^cP = 0.03, vs CagA +, OR = 9.0, 95% CI: 1.86-223.8;

^dP = 0.01, vs healthy individuals, OR = 5.17, 95% CI: 1.37-18.83.