Table 4.

 Frequencies of the interferon (IFN)-G+874 alleles in patients with different degrees of granulocytic (G) and lymphocytic (L) infiltration, as well as the presence or absence of intestinal metaplasia (IM) and atrophic gastritis (AG)

Antrum	G2/G3 (n = 152)	G0/G1 (n = 55)	OR (95% CI)	L2/L3 (n = 162)	L1 (n = 45)	OR (95% CI)	IM (n = 64)	Non-IM (n = 143)	OR (95% CI)	AG (n = 49)	Non-AG (n = 158)	OR (95% CI)
AA	47	18	1.0	54	11	1.0	20	45	1.0	17	48	1.0
	31%	33%	Ref	33%	24%	Ref	31%	31%	Ref	35%	30%	Ref
T carrier	105	37	1.1	108	34	0.7	44	98	1.0	32	110	0.8
	69%	67%	(0.5–2.2)	67%	76%	(0.3–1.4)	69%	69%	0.5–2.0	65%	70%	0.4–1.7

	G2/G3	G0/G1	OR	L2/L3	L1	OR	IM	Non-IM	OR	AG	Non-AG	OR
Corpus	(n = 84)	(n = 123)	(95% CI)	(n = 62)	(n = 145)	(95% CI)	(n = 12)	(n = 195)	(95% CI)	(n = 12)	(n = 195)	(95% CI)
Ref, reference.
G0, absent; G1, mild; G2, moderate; G3, severe granulocytic infiltration.
L1, mild; L2, moderate; L3 severe lymphocytic infiltration.
Odds ratios (OR) with exact 95% confidence intervals (CI) were calculated using StatXact-4.0.1 software.
AA	28	37	1.0	25	40	1.0	4	61	1.0	4	61	1.0
	33%	30%	Ref	40%	28%	Ref	33%	31%	Ref	33%	31%	Ref
T carrier	56	86	0.9	37	105	0.6	8	134	0.9	8	134	0.9
	67%	70%	(0.5–1.6)	60%	72%	(0.3–1.1)	67%	69%	(0.2–4.3)	67%	69%	(0.2–4.3)