Table 1 Demographic and obstetric characteristics of the study population.

From: Antenatal corticosteroids and preterm offspring outcomes in hypertensive disorders of pregnancy: A Japanese cohort study

 

HDP

Non-HDP

ACS

No-ACS

p-value

ACS

No-ACS

p-value

(N = 2,609)

(N = 2,197)

(N = 9,653)

(N = 6,555)

Maternal characteristics

  Maternal age (year)

33.9 ± 5.0

33.7 ± 5.1

0.19

31.4 ± 5.3

31.0 ± 5.5

<0.01

  Primiparous (%)

1,519 (58.2)

1,235 (56.2)

0.16

4,649 (48.2)

3,051 (46.5)

0.04

  Gestational age (wks)

28.9 ± 2.1

29.0 ± 2.0

0.01

27.7 ± 2.1

27.9 ± 2.1

<0.01

  CS ratio (%)

2,505 (96.0)

2,127 (96.8)

0.14

6,846 (70.9)

4,748 (72.4)

0.04

  GDM/DM (%)

123 (4.7)

90 (4.1)

0.30

318 (3.2)

176 (2.7)

0.03

Histological CAM (%)

413 (15.8)

258 (11.7)

<0.01

5,094 (52.8)

2,778 (42.4)

<0.01

  PROM (%)

117 (4.5)

70 (3.2)

0.02

5,018 (52.0)

2,301 (35.1)

<0.01

  NRFS (%)

967 (37.1)

842 (38.3)

0.37

2,415 (25.0)

1,898 (29.0)

<0.01

Neonatal characteristics

  Male (%)

1,212 (46.5)

1,021 (46.5)

0.99

5,175 (53.6)

3,522 (53.7)

0.88

  Birth weight (g)

902 ± 282

952 ± 287

<0.01

998 ± 277

1,027 ± 279

<0.01

  Height (cm)

33.9 ± 3.9

34.6 ± 3.9

<0.01

34.8 ± 3.6

35.2 ± 3.6

<0.01

  Head circumference (cm)

25.0 ± 2.6

25.4 ± 2.7

<0.01

25.0 ± 2.5

25.3 ± 2.5

<0.01

  SGA (%)

1,511 (57.9)

1,088 (49.5)

<0.01

1,265 (13.1)

838 (12.8)

0.55

  1. CS; caesarean section, GDM; gestational diabetes mellitus, DM; diabetes mellitus, CAM; chorioamnionitis, PROM; premature rupture of membrane, NRFS; non-reassuring fetal status, SGA; small for gestational age, HDP; hypertensive disorders of pregnancy, ACS; antenatal corticosteroids. Data are presented as mean ± standard deviation or n (%).
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