Mean Number of Bacteria by Membrane Layer Among Clinical Groups and Amnion/Chorion Ratio.

Values shown represent mean number of bacteria visualized within the amnion, the chorion, and the representative A/C ratio. Bacterial mean reporting includes standard errors and p values were PPROM = Preterm, premature rupture of membranes (subjects between 24 and 34 weeks following confirmation of rupture of membranes by physical exam).Preterm Labor = subjects between 24 and 34 weeks of gestation with spontaneous preterm labor.Preterm, No Labor = subjects between 24 and 34 weeks of gestation delivered preterm without labor exposure.Term = subjects between 37 and 41 weeks with labor.Term, No Labor = subjects between 37 and 41 weeks without exposure to labor.Rupture = sample of membrane collected at site of rupture.Distant = sample of membrane collected from an area distant to rupture site, most commonly near the placenta.