TABLE 2. Odds Ratios and 95% Confidence Intervals for Adenocarcinoma of the Distal stomach and Esophagus and Nitrate and Nitrite from Dietary Sources^a.

	Distal Stomach Cancer				Esophagus Cancer
	Controls	Cases	ORb	(95% CI)	Cases	ORc	(95% CI)
Diet nitrite and nitrate from animal sources (mg/day nitrate plus nitrite)
<3.8	99	19	1.0		14	1.0
3.8–<5.7	99	31	1.6	(0.8–3.2)	17	0.7	(0.3–1.6)
5.7–<8.3	99	25	1.8	(0.8–3.8)	28	1.7	(0.7–4.1)
8.3+	100	29	1.6	(0.7–3.7)	39	2.2	(0.9–5.7)
P for trend			0.352			0.015
Diet nitrite from plant sources (mg/day nitrite)
<0.36	94	23	1.0		23	1.0	1.0
0.36–<0.52	102	22	1.1	(0.4–2.7)	28	1.1	(0.5–2.3)
0.52–<0.67	101	29	0.8	(0.3–2.2)	17	0.6	(0.2–1.3)
0.67+	100	30	1.1	(0.3-3.4)	30	1.0	(0.4–2.4)
P for trend			0.275			0.438
Diet nitrate from plant sources (mg/day nitrate-nitrogen)
<16.9	99	24	1.0		29	1.0
16.9–<26.2	99	28	1.2	(0.6–2.5)	27	0.9	(0.5–1.8)
26.2–<38.8	99	26	1.4	(0.7–2.9)	18	0.6	(0.3–1.3)
>38.8	100	26	1.6	(0.7–3.6)	24	0.8	(0.3–1.8)
P for trend			0.266			0.121

^aExcluded those with >20% unknown foods;

^bOdds ratios adjusted for year of birth, gender, education, smoking, alcohol, total calories, vitamin C, fiber, carbohydrate;

^cOdds ratios adjusted for year of birth, gender, body mass index, smoking, alcohol, total calories, vitamin A, folate, riboflavin, zinc, protein, carbohydrate.