Effects of dietary intake and genetic factors on hypermethylation of the hMLH1 gene promoter in gastric cancer

Table 4 Distribution of controls and cases with or without promoter hypermethylation of the hMLH1 gene according to their intake of food groups which were statistically significant

	Controls	Cases without	Cases with
	(n)	hMLH1 promoter	hMLH1 promoter
		hypermethylation	hypermethylation
		(n)	(n)
Cereal
Low	110	45	17
High	109	24	20
Odds ratio	Referent (1.00)	0.56a (0.32 – 0.99)	0.94 (0.45 – 1.96)
Potato
Low	109	36	27
High	110	33	10
Odds ratio	Referent (1.00)	1.00 (0.57 – 1.74)	0.30b (0.14 – 0.67)
Vegetable
Low	110	29	12
High	109	40	25
Odds ratio	Referent (1.00)	1.42 (0.82 – 2.46)	2.17a (1.03 – 4.58)
Mushroom
Low	110	26	18
High	109	43	19
Odds ratio	Referent (1.00)	1.85a (1.05 – 3.27)	0.89 (0.43 – 1.83)
Fruit
Low	110	25	13
High	109	44	24
Odds ratio	Referent (1.00)	1.86a (1.06 – 3.27)	1.69 (0.81 – 3.54)
Butter, cheese,
and margarine
Low	110	49	24
High	109	20	13
Odds ratio	Referent (1.00)	0.45b (0.24 – 0.81)	0.44a (0.20 – 0.93)

Odds ratio was adjusted for age and sex.

^aP < 0.05.

^bP < 0.01 vs others.