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Table 1 Description of study samples of women giving birth in France in 2010 and 2016

From: A rise in births following contraceptive failure in France between 2010 and 2016: results from the French national perinatal surveys

 

Overall (%)

2010 (%)

2016 (%)

P value

N = 11 590

N = 9703

Age, years

18–19

1.6

1.8

1.2

 < 0.001

20–24

13.0

14.4

11.2

 

25–29

33.4

34.0

32.7

 

30–34

33.1

31.6

34.9

 

35–39

15.7

15.1

16.6

 

≥ 40

3.2

3.1

3.4

 

Parity

0

41.0

41.7

40.2

0.15

1

36.6

36.1

37.1

 

2

14.9

14.6

15.1

 

≥ 3

7.6

7.5

7.6

 

History of abortion

    

None

83.0

83.3

82.7

0.005

1

13.5

13.6

13.3

 

2 or more

3.5

3.1

4.0

 

Country of birth

    

France

84.8

85.1

84.4

0.27

Other European country

3.4

3.2

3.6

 

North Africa

5.7

5.7

5.6

 

Sub-Saharan Africa

3.7

3.6

3.8

 

Other country

2.5

2.4

2.6

 

Level of education

Middle school or less

24.6

26.3

22.5

< 0.001

High school

20.5

19.8

21.5

 

Some college

21.1

22.3

19.6

 

College

18.3

18.3

18.3

 

Post-graduate level

15.5

13.3

18.1

 

Health insurance coverage at the beginning of pregnancy

National plan

87.8

88.0

87.6

0.35

Insurance for low income/undocumented or no insurance

12.2

12.0

12.4