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. Author manuscript; available in PMC: 2016 Apr 12.
Published in final edited form as: J Matern Fetal Neonatal Med. 2009 Oct;22(10):880–886. doi: 10.1080/14767050902994648

Table 3.

AF PGF2a concentrations according to the presence or absence of intraamniotic infection/inflammation

Intraamniotic
infection/inflammation (−)		 Intraamniotic
infection/inflammation (+)		 Total
Low PGF2a 72 (89%) 22 (37%) 94
High PGF2a 9 (11%) 37 (63%) 46
Total 81 59 140

P<.001, by Chi-square test; Intraamniotic infection/inflammation was defined as a positive AF culture and/or elevated AF MMP-8 concentration (>23ng/ml).

AF, amniotic fluid; Low PGF2a, PGF2a <170 pg/mL; High PGF2a, PGF2a ≥170 pg/mL