Table 3. Stratum-specific estimates for total alcohol intake across levels of folate intake among women with oral cancer.

	Stratum-specific RR(95% CI)*
	Folate ≥ 350 μg/day		Folate <350 μg/day
Alcohol Intake§	Cases (n = 63)	RR (95% CI)	Cases (n = 84)	RR (95% CI)
0 g/d	27	1.00	16	1.00
0.1 - 14.9 g/d	21	0.29 (0.16-0.51)†	43	1.11 (0.61-1.99)
15 - 29.9 g/d	10	0.90 (0.42-1.94)	11	1.53 (0.69-3.38)
30+ g/d	5	0.98 (0.35-2.70)	14	3.36 (1.57-7.20)‡

^*Adjusted for age, follow-up time, pack-years of smoking and current smoking status

^†p-value<0.0001

^‡p-value<0.01

^§One alcoholic drink contains approximately 11-14 grams of alcohol: Regular beer = 12.8 g, light beer = 11.3, wine = 11 g, and liquor=14 g