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Table 1 Sample Characteristics, Comparison by Mode of Delivery for Unmatched (full) and Propensity Score Matched Samples

From: Cesarean deliveries and maternal weight retention

 

Cesarean

n = 777

Full Sample: Vaginal

n = 28,686

p-value

Propensity Score Matched Sample: Vaginal n = 777

p-value

Maternal Weight Measures

Mean/%

SE

Mean/%

SE

 

Mean/%

SE

 

Prior to Pregnancy 1

 Weight (pounds)

154.81

1.41

151.75

0.22

0.02

155.30

1.37

0.80

 BMI

25.88

0.22

25.43

0.03

0.03

26.62

0.23

0.80

 % Obese (BMI > = 30)

18.92

1.40

18.31

0.23

0.66

21.10

1.47

0.28

At Pregnancy 1 Delivery

 Weight (pounds)

187.83

1.37

183.65

0.22

0.00

187.85

1.33

0.99

Malpresentation Risk Factors

 Maternal age

28.79

0.17

26.68

0.03

0.00

28.88

0.17

0.69

 % Maternal age > 35

9.40

1.05

4.92

0.13

0.00

9.27

1.04

0.93

 Maternal height (inches)

64.82

0.11

64.76

0.02

0.58

64.86

0.1

0.75

 Weeks of gestation at delivery

38.33

0.08

39.06

0.01

0.00

38.32

0.08

0.9

 % Any fetal or congenital anomaly or infant death

6.43

0.88

2.86

0.09

0.00

6.94

0.91

0.68

 % Any uterine or placental anomalies

13.51

0.01

4.33

0.12

0.00

13.90

1.24

 

 5-Minute APGAR

8.86

0.03

8.89

0.00

0.14

3.85

0.03

0.92

 Interpregnancy Interval (months)

29.44

0.45

30.06

0.08

0.24

29.49

0.51

0.95

 % Tobacco use during pregnancy

9.91

1.07

13.13

0.20

0.01

10.17

1.08

0.87

 % Alcohol use during pregnancy

0.64

0.29

0.64

0.05

0.99

0.51

0.26

0.74

 % Maternal education = College+

48.39

1.79

33.50

0.28

0.00

46.85

1.79

0.54

 % Maternal race = white

89.57

1.10

7.59

0.26

0.00

89.06

1.12

0.74

 % Mother Hispanic/Latino

6.82

0.91

11.82

0.19

0.00

6.82

0.91

1.00

 %Mother married

79.15

1.46

49.89

0.29

0.00

80.44

1.42

0.53

 % Received WIC during pregnancy

14.16

1.25

19.43

0.23

0.00

11.45

1.14

0.11

 % Payer = Private health insurance

65.00

1.71

38.94

0.29

0.00

65.51

1.71

0.83

 % Payer = Medicaid

16.47

1.33

29.06

0.27

0.00

15.06

1.28

0.44

  1. Notes: Cesarean delivery refers to births with fetal malpresentation as the only clinical indicator. P-values reflect whether sample means/percentages are statistically different by mode of delivery
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BMC Pregnancy and Childbirth

ISSN: 1471-2393

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