Table 1.

Distribution of 169 patients with sporadic colorectal adenocarcinoma and 101 controls according to age, gender, ethic origin, smoking and alcoholism

	Patients (%)	Controls (%)	P-value
Age (years)
<60	81 (47.9)	48 (47.5)	0.9487
≥60	88 (52.1)	53 (52.5)
Gender
Male	97 (57.4)	77 (76.2)	0.0018
Female	72 (42.6)	24 (23.8)
Ethnic origin
White	140 (82.8)	89 (88.1)	0.3435
Black	27 (16.0)	12 (11.9)
Asian	02 (1.2)	0 (0.0)
Smoking
Never	78 (46.2)	57 (56.5)	0.1926
Past	47 (27.8)	26 (25.7)
Current	44 (26.0)	18 (17.8)
Alcoholism
Never	128 (75.7)	83 (82.2)	0.3287
Past	21 (12.5)	7 (6.9)
Current	20 (11.8)	11 (10.9)