MTHFR and non-Hodgkin lymphoma: Like the MTHFR C677T polymorphism, in the 26-study pooled analysis, we found no significant association between the MTHFR A1298C polymorphism and overall NHL risk (homozygous: OR=1.20, 95% CI=0.99-1.47; heterozygous: OR=1.00, 95% CI=0.94-1.07; recessive: OR=1.20, 95% CI=1.00-1.44; dominant: OR=1.04, 95% CI=0.95-1.13; allele comparison: OR=1.07, 95% CI=0.98-1.17).