E-cadherin gene C-160A promoter polymorphism and risk of non-cardia gastric cancer in a Chinese population

Table 1 Distribution of selected characteristics of gastric cancer patients and cancer-free controls.

Variable	Cases (n = 206)		Controls (n = 261)		P value1
	n	%	n	%
Age (yr)
≤60	89	43.2	114	43.7
>60	117	56.8	147	56.3	0.918
Sex
Male	150	72.8	190	72.8
Female	56	27.2	71	27.2	0.996
Alcohol status
Nondrinker	118	57.3	136	52.1
Drinker	88	42.7	125	47.9	0.265
Smoking status2
Nonsmoker	84	40.8	100	38.6
Smoker	122	59.2	159	61.4	0.635
H pylori infection3
Negative	91	44.2	93	35.9
Positive	115	55.8	166	64.1	0.07
Daily drinking of tea
Yes	77	37.4	123	47.1
No	129	62.6	138	52.9	0.035
Family history of gastric cancer4
Yes	42	20.5	25	9.6
No	163	79.5	235	90.4	0.001

¹Two-side χ² test; ²Two controls missed smoking information; ³Two controls missed H pylori information; ⁴One case and one control missed information of family history.