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Table 1 Maternal and fetal characteristics of the UCB study cohort

From: The idiopathic preterm delivery methylation profile in umbilical cord blood DNA

Clinical parameter

Preterm delivery

Term delivery

P-value

Number of samples

11

11

1**

Nulliparous

5 (50 %)

6 (55 %)

0.99**

Received antenatal glucocorticoids

9 (82 %)

0 (0 %)

0.0002**

Parturition initiated with spontaneous labor

7 (64 %)

7 (64 %)

1**

Parturition initiated with spontaneous rupture of membranes

4 (36 %)

4 (36 %)

1**

Labor induced or stimulated with oxytocin

5 (45 %)

7 (64 %)

0.67**

Mean gestational age at delivery in weeks + days (range)

29+6 (26+3 – 36+4)

39+6 (38+0 - 41+4)

3.83E-07*

Male neonate

5 (45 %)

6 (55 %)

0.99**

Neonatal weight (g)

1550 (990–2615)

3320 (2525–4215)

7.85E-07*

Neonatal birth weight percentile <10

0 (0 %)

3 (9.09 %)

0.21**

Maternal age

28 (19–35)

28 (19–36)

0.51*

  1. Data are represented as numbers (%) median (range)
  2. Abbreviations: n.s. not significant
  3. P-values were calculated by unpaired student’s T-test* and Fisher’s exact test** as applicable