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. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: Obstet Gynecol. 2014 Jan;123(1):40–48. doi: 10.1097/AOG.0000000000000049

Figure 2.

Figure 2

Figure 2

Figure 2

Figure 2

Adjusted risk (solid line) of small-for-gestational-age birth by maternal serum 25-hydroxyvitamin D (25(OH)D) at 12 – 26 weeks of gestation in (A) 298 white women (P less than 0.01, includes American Indian/Alaskan, n=2), (B) 494 black women (P=0.09), (C) 444 non-obese women (P=0.01, body mass index (BMI) less than 30 kg/m2), and (D) 348 obese women (P=0.39; BMI greater than 30 kg/m2) all at high risk for preeclampsia. Gray shading is 95% confidence intervals. 25(OH)D was modeled by restricted cubic splines with three knots (28.8, 60.0, and 103.3) at percentiles 10%, 50%, and 90% in a log-binomial model adjusted for latitude, obesity status, race, treatment group, and risk group. 25(OH)D values less than 15 nmol/L (n=9) and greater than 120 nmol/L (n=34) were omitted from the figure.