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

Figure 4

Relationship between plasma folic acid and plasma total folate. 1.1 mg group (triangles): Kendall’s 𝜏_𝑏=−0.26, 𝑃=0.14. 5 mg group (squares): Kendall’s 𝜏_𝑏=−0.073, 𝑃=0.67. Pooled data: Kendall’s 𝜏_𝑏=−0.16, 𝑃=0.18.