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Table 4 Clinical outcomes among babies born to women with normal BMI compared to 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

Infant Death or Adverse Outcome

97 (10.3)

50 (11.2)

28 (10.3)

1.09 [0.79,1.50]

0.60

1.00 [0.67,1.49]

1.00

Death Pre-Discharge

12 (1.3)

6 (1.3)

8 (2.9)

1.06 [0.40,2.80]

0.91

2.31 [0.95,5.60]

0.06

Liveborns

n = 933 (%)

n = 441 (%)

n = 266 (%)

    

GA at Delivery (weeks)b

40.0 (39.0-41.0)

40.1 (39.0-41.0)

40.0 (38.9-41.0)

--

0.34

--

0.72

Preterm birth (GA < 37 weeks)

59 (6.3)

27 (6.1)

21 (7.8)

0.97 [0.62,1.51]

0.90

1.24 [0.77,2.01]

0.37

Apgar at 5 minutes < 4

3 (0.3)

1 (0.2)

1 (0.4)

0.71 [0.07,6.76]

0.76

1.17 [0.12,11.19]

0.89

Admission to NICU

29 (3.1)

15 (3.4)

9 (3.4)

1.09 [0.59,2.02]

0.77

1.09 [0.52,2.27]

0.82

RDS

3 (0.3)

5 (1.1)

3 (1.1)

3.53 [0.85,14.69]

0.08

3.51 [0.71,17.28]

0.12

Birth Weight (g)a

3376 ± 573.7

3440 ± 553.5)

3476 ± 630.8

64.4 [-0.9,129.8]

0.05

99.7 [21.3,178.2]

0.01

SFGA (Birthweight < 10th percentile)

91 (9.8)

35 (7.9)

20 (7.5)

0.81 [0.56,1.18]

0.28

0.77 [0.48,1.23]

0.27

LFGA (Birthweight ≥ 90th percentile)

76 (8.1)

48 (10.9)

45 (16.9)

1.34 [0.95,1.88]

0.10

2.08 [1.47,2.93]

< 0.0001

Birthweight ≥ 4.5 kg

10 (1.1)

9 (2.0)

13 (4.8)

1.91 [0.78,4.67]

0.16

4.54 [2.01,10.24]

0.0003

Births (excluding fetal losses)

n = 940 (%)

n = 443 (%)

n = 269 (%)

    

Birth Length (cm)a

50.4 ± 3.1

50.6 ± 3.0

50.5 ± 2.9

0.21 [-0.1,0.6]

0.24

0.17 [-0.3,0.6]

0.43

Birth Head Circumference (cm)a

34.4 ± 1.9

34.7 ± 1.8

34.7 ± 1.9

0.30 [0.1,0.5]

0.01

0.34 [0.1. 0.6]

0.01

Birth Weight Z-Scorea

-0.08 ± 0.89

0.02 ± 0.94

0.16 ± 1.08

0.10 [-0.00,0.21]

0.06

0.24 [0.11,0.37]

0.0003

Birth Length Z-Scorea

0.01 ± 1.18

0.08 ± 1.19

0.11 ± 1.16

0.08 [-0.06,0.21]

0.27

0.10 [-0.06,0.27]

0.21

Birth Head Circumference Z-Scorea

-0.21 ± 1.10

-0.03 ± 1.13

0.07 ± 1.16

0.18 [0.05,0.31]

0.01

0.28 [0.13,0.44]

0.0003

  1. aValue is mean ± standard deviation and the comparison is mean difference [95% CI].
  2. bValue is median (Interquartile range).
  3. SFGA, small for gestational age; NICU, neonatal intensive care unit; RDS, respiratory distress syndrome, GA, gestational age;