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Table 4 Distributions of the interpregnancy interval by significantly differing maternal characteristics

From: Induced abortion - impact on a subsequent pregnancy in first-time mothers: a registry-based study

 

<20

 

20−24

 

25−29

 

30−34

 

35−39

 

>40

  

Age (years)

n

%

n

%

N

%

n

%

n

%

n

%

p

 <6 months

26

24.76

33

31.43

27

25.71

10

9.52

8

7.62

1

0.95

<0.0001

 6−12 months

49

27.53

65

36.52

40

22.47

19

10.67

5

2.81

0

0

 

 >12 months

322

7.02

1,363

29.71

1,555

33.89

934

20.36

343

7.48

71

1.55

 
 

Yes

 

No

 

N/A

        

Cohabiting

n

%

n

%

N

%

p

      

 <6 months

84

80.77

13

12.50

7

6.73

0.0116

      

 6−12 months

141

79.21

32

17.98

5

2.81

       

 >12 months

3,615

78.98

551

12.04

411

8.98

       
 

Underweight

 

Normalweight

 

Overweight

        

Weight

n

%

n

%

N

%

p

      

 <6 months

7

6.67

76

72.38

22

20.95

0.0601

      

 6−12 months

13

7.30

114

64.04

51

28.65

       

 >12 months

229

4.99

2,863

62.40

1,496

32.61

       
 

No smoking

 

Stopped in first trim

 

Continued after first trim

 

N/A

      

Smoking

n

%

n

%

N

%

n

%

p

    

 <6 months

64

60.95

8

7.62

32

30.48

1

0.95

0.0098

    

 6−12 months

99

55.62

16

8.99

61

34.27

2

1.12

     

 >12 months

2,865

62.45

596

12.99

1,063

23.17

64

1.39