Table 4.

Folate intake, MTHFR C677T genotype, and prostate cancer risk (43 cases, 170 controls).

Folate intake	MTHFR genotype	Cases n (%)	Controls n (%)	OR (95% CI)*
Low	CC	11 (26)	33 (19)	1.00 (ref)
Low	CT + TT	11 (26)	47 (28)	0.85 (0.31–2.37)
High	CC	11 (26)	39 (23)	1.06 (0.37–3.03)
High	CT + TT	10 (23)	51 (30)	0.73 (0.26–2.08)
p-interaction (multiplicative)				0.73
p-interaction (additive)				0.76

^*ORs adjusted for age, personal income, marital status, physical activity as a teen and family history of breast cancer.