. Author manuscript; available in PMC: 2011 Oct 13.

Published in final edited form as: Am J Obstet Gynecol. 2010 Aug 8;203(4):366.e1–366.e6. doi: 10.1016/j.ajog.2010.06.036

Table 2.

Unadjusted and Adjusted Odds Ratios for Early-Onset, Severe Preeclampsia

Variable	Unadjusted Analysis		Adjusted Analysis
	Odds Ratio (95%CI)	P value^*	Odds Ratio (95%CI)^†	P value^*
Maternal Plasma 25-OH-Vitamin D (per 10 ng/mL)	0.58 (0.43, 0.77)	<0.001	0.37 (0.22, 0.62)	<0.001
BMI (kg/m²) (per 1 unit)	1.08 (1.03, 1.13)	0.003	1.08 (1.02, 1.15)	0.01
Maternal age (years)	0.89 (0.83, 0.96)	0.002	0.87 (0.80, 0.96)	0.004
African American Race	0.93 (0.46, 1.88)	NS	12.6 (3.1, 50.4)	<0.001
Gestational age at sample collection (weeks)	1.03 (0.82, 1.31)	NS	0.94 (0.70, 1.27)	NS

Wald Chi square test

^†

Adjusted odds ratios and confidence intervals were adjusted for maternal plasma 25-OH-Vitamin D level, body mass index, maternal age, African American race, and gestational age at sample collection.

95%CI = 95 % Confidence Interval

BMI = prepregnancy body mass index

Hosmer-Lemeshaw p=0.35; ROC Curve area = 0.82