Figure 2. Amniotic fluid concentrations of Pentraxin 3 (PTX3) among women with spontaneous preterm labor (PTL) and intact membranes.
The median amniotic fluid concentration of PTX3 was significantly higher in women with intra-amniotic infection/inflammation (IAI) than in women who delivered preterm without IAI (7.9 ng/mL, IQR 1.7–35.3 vs. 0.38 ng/mL, IQR 0.22–0.82; p<0.001) and in those who delivered at term (0.55 ng/mL, IQR 0.24–1.19; p<0.001). Among women without IAI, there was no significant difference in the median amniotic fluid concentration of PTX3 between those who delivered preterm and those who delivered at term. (0.38 ng/mL, IQR 0.22-0.82 vs 0.55 ng/mL, IQR 0.24-1.19; p= 0.6).