Table 6.

IgGFc-binding protein in amniotic fluid from preterm labor with intact membranes: the comparisons among the subgroups of the women with intra-amniotic infection, sterile intra-amniotic inflammation, and negative amniotic fluid.

	Intra-amniotic infection	Sterile intra-amniotic inflammation	Negative
Intra-amniotic infection	x	p = 0.04 adj. p = 0.02	p < 0.0001 adj. p < 0.0001
Sterile intra-amniotic inflammation	p = 0.04 adj. p = 0.02	x	p < 0.0001 adj. p < 0.0001
Negative	p < 0.0001 adj. p < 0.0001	p < 0.0001 adj. p < 0.0001	x

p-value: a comparison between two subgroups (a nonparametric Mann–Whitney U test);

Adj. p-value: a comparison between two subgroups after the adjustment for gestational age at sampling (a Spearman partial correlation).

Statistically significant results are marked in bold.