The association of neonatal thyroid function with homocysteine, folate, and vitamin B12 concentrations. Plots show the linear regression models for the association of TSH and FT4 with folic acid, vitamin B12, and homocysteine concentrations, as predicted mean with 95% CI in the neonates. Analyses were adjusted for birth weight standardized for gestational age, fetal sex, ethnicity, maternal age, educational level, parity, and smoking status.