The Effect of CYP, GST, and SULT Polymorphisms and Their Interaction with Smoking on the Risk of Hepatocellular Carcinoma

Table 1

Distribution of 221 cases of hepatocellular carcinoma (HCC) and 290 controls according to selected factors.

	HCC cases ()		Controls ()
		(%)		(%)
Age (years)
<60	43	(19.5)	105	(36.2)
60–69	80	(36.2)	78	(26.9)
≥70	98	(44.3)	107	(36.9)
Sex
Male	160	(72.4)	176	(60.7)
Female	61	(27.6)	114	(39.3)
Smoking^a
Never	85	(39.2)	173	(59.7)
Ever	133	(60.8)	117	(40.3)
Hepatitis^a,c
No	64	(29.0)	282	(97.9)
Yes	157	(71.0)	6	(2.1)

^aThe sum does not add up to the total because of some missing values.
values from test.
^cHepatitis was defined as history of hepatitis B and/or C.