Fig. 3
From: Is folic acid associated with lung cancer development? A cross-sectional study in NHANES

Dose-response relationship between folate intake and LC. A: Total folate B: Folic acid C: Dietary folate D: Serum folate E: RBC folate F: 5-methylTHF G: UFMA H: 5-formylTHF I: THF J: 5,10-methenyITHF K: MeFox. The solid line indicates the estimated risk of LC, and the dashed line indicates the fitted 95% CI. LC, lung cancer; OR, odds ratio