Table 2.

Methylation of Placental NR3C1 Promoter CpG Sites by Maternal Smoking Group

NR3C1 CpG site	MSDP-exposed % methylation Mean (SE)	Unexposed % methylation Mean (SE)
CpG 1	2.09 (.46)	1.50 (.19)
CpG 2	.85 (.37)	.51 (.10)
CpG 3	1.51 (.32)	2.07 (.22)*
CpG 4	.87 (.19)	2.34 (.75)**
CpG 5	1.18 (.37)	1.07 (.21)
CpG 6	2.5 (.28)	2.47 (.26)
CpG 7	6.80 (.51)	6.59 (.51)
CpG 8	3.97 (.42)	4.08 (.45)
CpG 9	3.22 (.49)	3.43 (.43)
CpG 10	4.04 (.51)	4.36 (60)
CpG 11	3.17 (.68)	4.20 (.67)
CpG 12	2.29 (.32)	2.73 (.35)
CpG 13	1.54 (.38)	1.77 (.34)

Note.

^*p < .05

^**p < .01.