Table 3. Hazard raito (HR)* of lung cancer by level of alcohol consumption according to smoking status.

		Never drinkers	Ever drinkers	Current drinkers (ethanol intake)			Ex-drinkers	P for trend 1†	P for trend 2‡
				≤24.9 g/day	25.0-49.9 g/day	≥50.0 g/day
Never smokers	Person-years	13,368	36,575	21,297	9,607	3,331	2,339
	No. of deaths	5	13	7	1	1	4
	HR	1.00	1.22 (0.43-3.45)	1.10 (0.35-3.51)	0.37 (0.04-3.18)	1.15 (0.13-9.98)	4.20 (1.12-15.72)	0.61	0.54
Ex-smokers	Person-years	10,035	50,374	24,004	16,089	4,993	5,288
	No. of deaths	19	61	27	15	2	17
	HR	1.00	0.74 (0.44-1.25)	0.64 (0.36-1.16)	0.67 (0.34-1.33)	0.34 (0.08-1.47)	1.37 (0.71-2.64)	0.13	0.53
Current smokers (Cigarretes/day)
≤20	Person-years	15,227	72,388	30,626	26,672	10,579	4,510
	No. of deaths	33	110	44	35	16	15
	HR	1.00	0.86 (0.58-1.27)	0.76 (0.48-1.20)	0.78 (0.48-1.27)	1.09 (0.59-2.01)	1.32 (0.72-2.43)	0.99	0.20
>20	Person-years	6,509	28,142	9,425	10,140	7,084	1,493
	No. of deaths	12	57	11	23	13	10
	HR	1.00	1.31 (0.69-2.47)	0.74 (0.33-1.70)	1.49 (0.73-3.03)	1.31 (0.58-2.93)	2.64 (1.13-6.14)	0.20	0.15

* : Adjusted for age, family history of lung cancer, intake of green-leafy vegetables, oranges and fruits other than oranges.

† : P for trend among current drinkers. The test for linear trends includes never drinkers.

‡ : P for trend among current drinkers. The test for linear trends excudes never drinkers.

95% confidence intervals in parentheses.