Some 42.3% of control subjects were alcohol drinkers,
but alcohol consumption is much more common in men
(87.2% ever-drinkers among controls) than among women
(15.4%). The drinkers had a 2.10-fold (95%CI=1.19-3.68,
p-value=0.01) increased risk compared with never drinkers
in univariate analysis (Table 2). There was no clear effect
of increased frequency or duration of drinking. In addition,
the alcoholic beverage with the strongest association with
oral cancer was rice whisky (OR=3.8; 95%CI=1.99-7.25,
p-value