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Table 2 Asthma medication, socio-demographic and neonatal indicators by mode of delivery in 2-9 year olds

From: Confounding with familial determinants affects the association between mode of delivery and childhood asthma medication – a national cohort study

N=199 837

     
 

Vaginal

Elective CS

Emergency CS

Vacuum extraction

 

N=143 347

N=16 050

N=13 875

N=26 565

  

%

%

%

%

Any asthma medication (child)

Yes

8.9

11.3

10.2

9.8

ICS (child)

Yes

5.6

7.1

6.5

6.4

ICS at least twice (child)

Yes

2.8

3.8

3.6

3.4

ICS (mother)

Yes

2.7

4.2

3.5

3.1

ICS (father)

Yes

2.6

3.7

3.0

2.8

Maternal age at delivery (years)

11-24

24.1

13.6

14.4

16.3

 

25-34

68.5

67.1

71.6

72.3

 

>34

7.4

19.3

14.0

11.4

Maternal body mass index

Underweight

2.3

1.8

1.3

2.0

 

Normal

60.5

52.4

49.7

58.5

 

Overweight

18.4

21.5

23.7

20.1

 

Obese1

5.0

7.6

8.4

5.2

 

Obese2

1.8

3.6

3.5

1.9

 

Missing

12.0

13.1

13.4

12.3

Gestational age

     

(weeks)

37-38

18.1

53.8

16.7

13.3

Hypertension

Preeclampsia

1.1

2.1

1.2

1.3

 

Pregestational

3.0

11.2

2.7

3.6

Diabetes type 1

Yes

0.2

1.6

0.6

0.5

Gestational diabetes

Yes

0.5

1.3

0.7

0.5

Low Apgar score

Yes

0.5

1.3

2.4

2.6

SGA

Yes

1.8

4.6

3.2

2.2

LGA

Yes

1.4

4.1

4.2

2.2

Any neonatal respiratory complication

Yes

1.6

3.1

3.9

3.3

Maternal smoking

Yes

8.7

9.4

8.6

7.4

Social welfare

Yes

2.5

2.0

1.8

1.6

Maternal education

<10 years

6.6

6.2

5.5

4.9

 

10-12

43.4

44.0

44.6

43.2

 

13-14

14.0

15.1

15.2

14.5

 

>14

36.0

34.6

34.7

37.3

County category

1

22.6

29.2

26.6

27.2

 

2

19.2

17.2

17.8

15.8

 

3

39.4

35.5

36.8

36.2

 

4

18.8

18.1

18.8

20.9

  1. Abbreviations: CS, caesarean section; ICS, inhaled corticosteroid use; LGA, large for gestational age; SGA, small for gestational age.