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Table 1 Maternal characteristics of IVF-PE and NC-PE group

From: Pregnancy outcomes and risk factors for preeclampsia in dichorionic twin pregnancies after in vitro fertilization: a five-year retrospective study

 

IVF-PE

group (n = 117)

NC-PE

group (n = 64)

P value

Maternal age (years)

30.96 ± 3.88

28.63 ± 3.45

0.000

Advanced age (≥35 years) n (%)

21 (17.9)

15 (23.4)

0.376

BMI at delivery (kg/m2)

29.31 ± 3.69

28.14 ± 3.15

0.033

Gravidity n (%)

  

0.050

 1

52 (44.5)

33 (51.5)

 

 2

37 (31.6)

14 (21.9)

 

 3

15 (12.8)

3 (4.7)

 

  ≥ 4

13 (11.1)

14 (21.9)

 

Parity n (%)

  

0.021

 0

101 (86.3)

44 (68.7)

 

 1

13 (11.1)

16 (25.0)

 

  ≥ 2

3 (2.6)

4 (3.3)

 

Pregestational obesity n (%)

15 (12.8)

2 (3.1)

0.033

Pregnancy weight gain (kg)

16.22 ± 2.14

16.63 ± 1.78

0.178

Family history of preeclampsia n (%)

7 (6.0)

5 (7.8)

0.872

LDA usage n (%)

24 (20.5)

5 (7.8)

0.026

  1. All data are expressed as the mean ± standard deviation or n (%)
  2. Abbreviations: IVF In vitro fertilization, NC Natural conception, PE Preeclampsia, LDA Low-dose aspirin