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Table 3 Clinical information on samples assigned to cluster 1 and cluster 2 obtained by neutrophil-specific CpGs

From: DNA methylation profiling of acute chorioamnionitis-associated placentas and fetal membranes: insights into epigenetic variation in spontaneous preterm births

Neutrophil-specific Cluster 1 (n = 22) Cluster 2 (n = 20) p value
aCA status (aCA/total) 17/22 5/20 < 0.005
Fetal sex (M/total) 15/24 9/20 ns
Gestational age, weeks 28.3–36 28–36.7 ns
Maternal age, years 21.2–43.9 20.4–43.5 ns
Fetal birth weight (SD) − 1.14 to 1.58 − 2.46 to 0.73 ns
  1. p values are calculated by Wilcoxon–Mann–Whitney rank sum test for continuous variables, Fisher’s exact test for fetal sex and aCA status
  2. ns non-significant