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. Author manuscript; available in PMC: 2013 Mar 25.
Published in final edited form as: Am J Reprod Immunol. 2010 Feb 12;63(4):318–330. doi: 10.1111/j.1600-0897.2009.00800.x

Figure 3. Comparison of the median maternal plasma concentration of fragment Bb in women with a normal pregnancy and those with spontaneous preterm labor (PTL).

Figure 3

The median maternal plasma fragment Bb concentration was higher in patients with PTL who delivered preterm, either with IAI (1.21 μg/ml, IQR 0.77-2.16 vs. 0.86 μg/mL, IQR 0.64-1.57; p=0.007) or without IAI (1.13 μg/mL, IQR 0.92-2.08; p=0.026), than those with an episode of PTL who delivered at term and than those with a normal pregnancy (p<0.001 for both comparisons).