TABLE 3.

Association between VDR SNP and the risk of SGA birth by race/ethnicity¹

	OR (95% CI)	P-value	Model r2	Model adjusted r2
White women
Model 1			2.6	3.8
rs11168292	1.8 (1.1, 3.0)	0.02
Model 2			8.0	12.0
rs11168292	1.7 (1.1, 2.8)	0.04
Serum 25(OH)D at <22 wk
<37.5 nmol/L	14.0 (2.7, 73.0)	0.005
37.5–75 nmol/L	1.0 (ref)
>75 nmol/L	2.0 (1.1, 3.7)	0.17
Black women
Model 1			12.3	18.6
rs11168287	0.4 (0.2, 0.9)	0.03
rs3782905	5.7 (1.8, 17.7)	0.004
rs2239179	0.3 (0.1, 0.6)	0.003
Model 2			14.0	21.0
rs11168287	0.4 (0.2, 0.8)	0.02
rs3782905	5.3 (1.8, 17.4)	0.003
rs2239179	0.3 (0.1, 0.7)	0.004
Serum 25(OH)D at <22 wk
<37.5 nmol/L	1.4 (0.5, 3.9)	0.61
37.5–75 nmol/L	1.0 (ref)
>75 nmol/L	3.4 (0.6, 17.4)	0.18

¹Additive models were analyzed for each SNP. OR represent the increase in odds associated with the addition of 1 allele.