From: Methylenetetrahydrofolate reductase C677T polymorphism in patients with lung cancer in a Korean population
MTHFR C677T
Lung cancer n (%)
Control n (%)
ORa
95% CI
CC
1361 (34.5)
540 (31.8)
1
CT
1909 (48.5)
862 (50.7)
0.90
0.77-1.04
TT
668 (17.0)
298 (17.5)
0.88
0.71-1.07
CT+TT
2577 (65.4)
1160 (68.2)
0.89
0.78-1.03