Variable

OR

95% CI

p-Value

Caesarean Section

Model I; n = 9633

Prepregnancy BMI

1.16

1.10 - 1.22

<0.001

Maternal age (yr)

1.12

1.08 - 1.16

<0.001

GDM or later Type 2 diabetes

1.02

0.30 - 3.54

NS

Weight gain (kg)

1.01

0.97 - 1.05

NS

Birth weight (hg)

0.97

0.93 - 1.00

NS

Gestational length (weeks)

0.88

0.79 - 0.99

0.03

Model II; n = 30,368

GDM or later Type 2 diabetes

1.48

0.94 - 2.34

NS

Maternal age (yr)

1.20

1.18 - 1.21

<0.001

Gestational length (weeks)

0.81

0.77 - 0.84

<0.001

Birth weight (hg)

0.99

0.97 - 1.00

NS

Model III; n = 13,000

GDM or later Type 2 diabetes

1.81

1.01 - 3.24

0.048

Maternal age (yr)

1.20

1.18 - 1.22

<0.001

Prepregnancy BMI

1.02

1.01 - 1.03

0.001

Birth weight (hg)

0.98

0.96 - 1.00

0.054

Gestational length (weeks)

0.79

0.75 - 0.83

<0.001

Low Apgar Score (<8)

1 minute; n = 12,255

GDM or later Type 2 diabetes

1.70

1.17 - 2.48

0.006

Prepregnancy BMI

1.04

1.03 - 1.06

<0.001

Birth weight (hg)

0.98

0.97 - 0.99

0.001

Gestational length (weeks)

0.93

0.90 - 0.97

<0.001

Smoking

1.02

0.90 - 1.15

NS

5 minutes; n = 12,197

GDM or later Type 2 diabetes

1.93

1.04 - 3.60

0.03

Prepregnancy BMI

1.04

1.01 - 1.07

0.003

Birth weight (hg)

0.94

0.92 - 0.96

<0.001

Gestational length (weeks)

0.90

0.85 - 0.96

<0.001

Smoking

1.02

0.82 - 1.28

NS

10 minutes; n = 10,069

GDM or later Type 2 diabetes

1.70

0.61 - 4.74

NS

Prepregnancy BMI

1.02

0.98 - 1.07

NS

Birth weight (hg)

0.97

0.93 - 1.00

0.05

Gestational length (weeks)

0.83

0.76 - 0.91

<0.001

Smoking

0.84

0.57 - 1.23

NS

Macrosomia

Model I; n = 9444

GDM or later Type 2 diabetes

2.10

1.32 - 3.35

0.002

Gestational length (weeks)

1.78

1.70 - 1.87

<0.001

Weight gain (kg)

1.09

1.08 - 1.11

<0.001

Prepregnancy weight (kg)

1.05

1.05 - 1.06

<0.001

Mother’s age (yr)

1.03

1.02 - 1.04

<0.001