Odds Ratios for Preeclampsia According to Circulating Angiogenic Factors Measured in Samples Collected at Study Entry.^*

<p>*Data are presented as mean ± standard deviation. OR denotes odds ratio, CI confidence interval. Odds ratios represent the odds of developing preeclampsia for a two-fold increase of the factor among preeclamptic subjects compared to controls.</p>†<p>Odds ratios were adjusted for gestational age at sample collection, smoking, maternal age, race or ethnic group, body mass index and treatment group.