Table 3 Multivariable logistic regression of the odds of pregnancy within 12 months

DAP score

0–4

884

0.22

0.17

0.28

0.22

0.17

0.29

 < 0.001

Age group

15–19

139

Reference

< 0.001

Reference

0.025

20–24

143

2.56

0.68

9.72

0.69

0.15

3.12

25–29

139

10.82

3.20

36.57

1.78

0.46

6.88

30–34

224

12.87

3.92

42.23

0.90

0.22

3.66

35–39

209

5.64

1.67

19.07

0.49

0.11

2.12

40 + 

101

3.62

0.93

14.10

0.47

0.09

2.47

Number of children

0

430

Reference

< 0.001

Reference

0.004

1

208

5.07

3.22

7.97

3.30

1.74

6.26

2

233

1.24

0.72

2.15

2.56

1.16

5.65

3 + 

78

0.88

0.36

2.17

2.40

0.78

7.41

Relationship status

Not in a relationship

152

Reference

< 0.001

Not retained in final model

In a relationship

338

3.39

1.17

9.84

Married

479

9.55

3.44

26.47

Ethnicity

White

834

Reference

0.31

Black, Asian, Mixed and Other ethnicities

128

0.74

0.41

1.34

Highest education level

School

265

Reference

< 0.001

Undergraduate

389

4.61

2.44

8.71

Postgraduate

309

3.79

1.97

7.31