Cytochrome P450 2E1 genetic polymorphism and gastric cancer in Changle, Fujian Province

Table 4 Relationships between CYP2E1 together with selected variables and risk of gastric cancer

CYP2E1	Variables Smoking	Gastric cancer	Controls	OR (95%CI)
C1/C1	No	21	48	1.00
C1/C1	Yes	37	23	3.68 (1.67-8.19)
C1/C2 or C2/C2	No	10	12	1.90 (0.64-5.69)
C1/C2 or C2/C2	Yes	23	1 1	4.78 (1.82-12.78)
Alcohol drinking
C1/C1	No	26	51	1.00
C1/C1	Yes	32	20	3.14 (1.42-6.99)
C1/C2 or C2/C2	No	14	15	1.83 (0.70- 4.77)
C1/C2 or C2/C2	Yes	19	8	4.66 (1.65-13.53)
Fish sauce intakea
C1/C1	Low	11	53	1.00
C1/C1	High	47	18	12.58 (5.40-29.34)
C1/C2 or C2/C2	Low	6	16	1.81 (0.58-5.66)
C1/C2 or C2/C2	High	27	7	18.58 (6.47-53.37)

^aHigh ≥ 3 times/w; Low < 3 times/w