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Table 3 Pregnancy complications among women with normal BMI compared with overweight and obese women

From: The risk of adverse pregnancy outcomes in women who are overweight or obese

Outcome

Normal

n = 943

(%)

Overweight

n = 446

(%)

Obese

n = 272

(%)

Overweight

vs. Normal

[95% CI]

p value

Obese

vs. Normal

[95% CI]

p value

Chorioamnionitis requiring antibiotics

10 (1.1)

3 (0.7)

3 (1.1)

0.63 [0.18,2.29]

0.49

1.04 [0.29,3.75]

0.95

Induction

250 (26.5)

157 (35.2)

128 (47.1)

1.33 [1.13,1.57]

0.001

1.78 [1.51,2.09]

< 0.0001

Induction for hypertension

35 (3.7)

32 (7.2)

40 (14.7)

1.93 [1.21,3.08]

0.01

3.96 [2.57,6.11]

< 0.0001

Induction for GDM/IDDM

3 (0.3)

7 (1.6)

10 (3.7)

4.93 [1.28,18.99]

0.02

11.6 [3.20,41.69]

0.0002

Caesarean Section

210 (22.3)

141 (31.6)

99 (36.4)

1.42 [1.18,1.70]

0.0002

1.63 [1.34,1.99]

< 0.0001

Elective Caesarean Section

51 (5.4)

30 (6.7)

18 (6.6)

1.24 [0.80,1.92]

0.33

1.22 [0.73,2.06]

0.45

Emergency Caesarean Section

159 (16.9)

111 (24.9)

81 (29.8)

1.48 [1.19,1.83]

0.0004

1.77 [1.40,2.23]

< 0.0001

CS for Pre-Eclampsia

9 (1.0)

3 (0.7)

9 (3.3)

0.70 [0.19,2.59]

0.60

3.47 [1.39,8.65]

0.01

CS for Fetal Distress

89 (9.4)

59 (13.2)

44 (16.2)

1.40 [1.03,1.91]

0.03

1.71 [1.23,2.40]

0.002

CS for Chorioamnionitis

2 (0.2)

0 (0.0)

1 (0.4)

--

--

--

--

CS for CPD

6 (0.6)

6 (1.3)

5 (1.8)

2.11 [0.69,6.52]

0.19

2.89 [0.89,9.39]

0.08

CS for Failure to Progress

83 (8.8)

59 (13.2)

44 (16.2)

1.50 [1.10,2.06]

0.01

1.84 [1.31,2.58]

0.0004

Length of Stay (days)a

3.0 ± 1.6

3.3 ± 2.1

3.4 ± 1.7

0.3 [0.1,0.5]

0.01

0.3 [0.1,0.6]

0.01

Major Post Partum Haemorrhage

20 (2.1)

12 (2.7)

10 (3.7)

1.27 [0.63,2.57]

0.51

1.73 [0.82,3.66]

0.15

Antibiotics post partum

132 (14.0)

81 (18.2)

48 (17.6)

1.30 [1.01,1.67]

0.04

1.26 [0.93,1.70]

0.13

Antibiotics for Wound Infection

10 (1.1)

6 (1.3)

8 (2.9)

1.27 [0.46,3.47]

0.64

2.77 [1.11,6.96]

0.03

  1. aValue is mean ± standard deviation and the comparison is mean difference [95% CI].
  2. GDM, gestational diabetes mellitus; IDDM, Insulin-Dependent Diabetes Mellitus; CS, caesarean section; IUGR, intrauterine growth restriction; CPD, cephalopelvic disproportion.