Fig. 2

Distributions of patients with different Kimura-Takemoto endoscopic classifications among different MTHFR C677T genotypes. Helicobacter pylori-negative patients with TT genotype showed a trend toward a higher frequency of C-2 or C3-O3 lesions according to the Kimura-Takemoto endoscopic classification (CC + CT vs. TT: 66% vs. 79%, P = 0.29)