[Retracted] Study on the Relationship between MMP-2, MMP-9 Gene Polymorphisms, and the Risk of Colorectal Cancer

Table 1

Comparison of general information between the colorectal cancer group and control group.

Indexes		Number of cases (n)	Colorectal cancer group (n = 308)	Control group (n = 300)	χ^2
Gender	Male	310	160	150	0.231	0.631
	Female	298	148	150
Age (year)	<60	267	137	130	0.081	0.776
	≥60	341	171	170
BMI index (kg/m^2 )	<18.5	55	30	25	0.587	0.746
	18.5–23.9	485	242	243
	>23.9	68	36	32
Family history of colorectal cancer	Yes	32	26	6	12.647	<0.001
	No	576	282	294
Smoking	Yes	193	101	92	0.317	0.574
	No	415	207	208
Drinking alcohol	Yes	107	65	42	5.289	0.022
	No	501	243	258
Irregular diet	Yes	134	73	61	1.003	0.317
	No	474	235	239
Regular consumption of marinated/barbecued food	Yes	114	69	45	5.467	0.019
	No	494	239	255
Regular consumption of spicy food	Yes	105	59	46	1.554	0.213
	No	503	249	254
Regular physical activity	Yes	287	139	148	1.077	0.299
	No	321	169	152