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Table 1 Obstetric and perinatal variables and their relation with obesity during pregnancy

From: Obesity and pregnancy: a transversal study from a low-risk maternity

Variables

Obese (BMI > 30 kg/m2)

Control (BMI < 30 kg/m2)

  
 

n

Mean

SD

n

Mean

SD

p*

Total (n)

Age (years)

222

25.47

5.29

1,544

24.11

5.41

<0.01

1,766

Age at first pregnancy (years)

221

20.76

4.82

1,543

20.36

4.42

0.21

1,764

Previous pregnancies

228

2.29

1.51

1,550

2.03

1.39

0.01

1,778

Previous abortions

228

0.52

0.98

1,551

0.21

0.52

<0.01

1,779

Previous vaginal deliveries

228

0.64

1.20

1,551

0.68

1.15

0.71

1,779

Previous caesarean deliveries

228

0.23

0.42

1,551

0.16

0.37

0.01

1,779

Gestational age at 1st US (weeks)

127

15.11

4.74

1,273

15.09

4.71

0.96

1,400

Pre-natal attendance**

91

8.90

1.55

761

8.83

1.73

0.70

852

Systolic blood pressure (40th week)**

93

118.1

12.6

773

109.2

11.5

<0.01

866

Diastolic blood pressure (40th week)**

93

76.6

9.9

773

70.4

8.6

<0.01

866

Bishop index (40th week)**

93

1.88

1.47

773

2.21

1.80

0.09

866

FBP (40th week)

228

7.89

0.49

1,538

7.92

0.38

0.31

1,766

AFI (40th week)

228

12.52

4.36

1,539

9.61

3.57

0.02

1,767

Placenta (40th week)**

93

2.13

0.54

777

2.19

0.55

0.32

870

Gestational age during birth (weeks)

229

40.84

0.71

1,551

40.75

0.66

0.06

1,780

Birthweight (g)

229

3,602

470

1,551

3,437

414

<0,01

1,780

Apgar 1st minute

229

7,76

2,00

1,551

7,90

2,06

0,33

1,780

Apgar 5th minute

229

9,53

0,65

1,551

9,59

0,78

0,29

1,780

  1. FBP – Foetal biophysical profile.
  2. AFI – amniotic fluid index.
  3. *Statistical significance when p < 0.05 – T Student test.
  4. **Sampling less than 1,000 patients.