Table 2 Pregnancy and delivery outcomes of the PIH and non-PIH groups

From: Prediction of pregnancy-induced hypertension by a shift of blood pressure class according to the JSH 2009 guidelines

  

All (n=976)

PIH group (n=32)

non-PIH group (n=944)

P-value

Gestational age (weeks)

mean (s.d.)

39.1 (1.8)

37.8 (1.9)

39.1 (1.7)

<0.001

 <37

n (%)

59 (6.0)

11 (34.4)

48 (5.1)

<0.001

37

n (%)

917 (94.0)

21 (65.6)

896 (94.9)

 

Stillbirth

n (%)

2 (0.2)

1 (3.1)

1 (0.1)

NS

Delivery mode

 Normal vaginal delivery

n (%)

614 (62.9)

11 (34.4)

603 (63.9)

<0.001

 Instrumental delivery

n (%)

152 (15.6)

11 (34.4)

141 (14.9)

0.01

 Total Cesarean section

n (%)

208 (21.3)

10 (31.3)

198 (21.0)

NS

 Planned cesarean section

n (%)

124 (12.7)

6 (18.8)

118 (12.5)

NS

 Emergency cesarean section

n (%)

84 (8.6)

4 (12.5)

80 (8.5)

NS

Placental weight (g)

mean (s.d.)

558.4 (104.6)

513.0 (100.9)

560.0 (104.4)

0.022

Birth weight (g)

mean (s.d.)

3003.6 (421.8)

2618.7 (538.7)

3016.6 (411.3)

<0.001

Head circumference (cm)

mean (s.d.)

33.1 (1.4)

32.4 (1.7)

33.2 (1.4)

0.007

Chest circumference (cm)

mean (s.d.)

31.5 (1.7)

30.0 (2.0)

31.6 (1.7)

<0.001

Apgar score at 5 min of 7

n (%)

18 (1.8)

3 (9.4)

15 (1.6)

0.02

  1. Abbreviations: NS, not significant; PIH, pregnancy-induced hypertension; s.d., standard deviation.