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. Author manuscript; available in PMC: 2013 Sep 1.
Published in final edited form as: Clin Perinatol. 2012 Sep;39(3):441–457. doi: 10.1016/j.clp.2012.06.010

Table 1.

Organisms Cultured from Chorion in Association with Preterm Deliveries*

Organism Type
Ureaplasma/Mycoplasma Aerobes Anaerobes % of Culture Positive Placentas*

+ 9
+ 30
+ 21
+ + 3
+ + 4
+ + 28
+ + + 6
*

51% of 1365 placentas were culture positive

Data from Onderdonk, et al., (4)