Table 1.

Relative risk (95% confidence interval) of upper digestive tract cancer, according to intake of beer, wine, and spirits, adjusted for age, sex, smoking habits, and educational level

No of drinks/week	Beer	Wine	Spirits
0	1.0	1.0	1.0
1-6	1.5 (0.9 to 2.5)	0.8 (0.5 to 1.1)	0.7 (0.5 to 1.1)
⩾7	2.9 (1.8 to 4.8)	0.4 (0.2 to 0.8)	1.5 (1.2 to 1.9)