Table 4.

Relation between the combined intake of folate and alcohol and the risk of prostate cancer. Italy, 1991-2002

Level of intake^†	Cases	Controls	OR (95% CI)*
Low folate, high alcohol	107	101	1^‡
All other combinations	1,122	1,253	0.72 (0.52-0.99)
High folate, low alcohol	65	97	0.46 (0.29-0.75)

↵† Folate intake was divided in quintiles and alcohol intake in tertiles.
↵* Estimates from unconditional logistic regression models adjusted for age, study center, education, body mass index, smoking habit, family history of prostate cancer, and nonalcohol energy intake.
↵‡ Reference category.