Table 4.

Associations of DNA methylation at the three CpGs identified in the analysis of cord blood serum ferritin concentrations and cord blood DNA methylation

CpG	Chr	Position	Gene	Effect	SE	p value
cg02806645	3	138,725,153	PRR23A	− 1.4 × 10–5	5.2 × 10–5	0.79
cg06322988	3	138,725,189	PRR23A	− 1.9 × 10–6	2.2 × 10–5	0.93
cg04468817	16	2,903,392	PRSS22	− 3.3 × 10–5	2.6 × 10–5	0.20

Chr, Chromosome; SE, standard error

Effect estimates represent the difference in DNA methylation per 1 µg/L increase in cord blood serum ferritin concentrations. The model was adjusted for gestational age at birth, maternal age at intake, educational level, pre-pregnancy body mass index, smoking, child sex, cell-type proportions, and batch