Circulating Unmetabolized Folic Acid: Relationship to Folate Status and Effect of Supplementation

Figure 5

Relationship between plasma folic acid and RBC total folate. 1.1 mg group (triangles): Kendall’s 𝜏_𝑏=−0.36, 𝑃=0.04. 5 mg group (squares): Kendall’s 𝜏_𝑏=0.15, 𝑃=0.39. Pooled data: Kendall’s 𝜏_𝑏=−0.068, 𝑃=0.56.