Association of elevated endothelial dysfunction biomarkers levels with preterm delivery – Entry to care.

<p>Abbreviations: IQR, interquartile range; OR, unadjusted odds ratio; AOR, adjusted odds ratio; 95% CI, 95% confidence interval.</p><p>*Model 1: All preterm cases and controls and was adjusted for age, BMI, ethnicity, parity and cigarette smoking.</p>†<p>Model 2: Spontaneous preterm cases and controls with same adjustment.