Table 1 Individual & household-level characteristics of respondents by adolescent pregnancy in Nigeria

Adolescent current age

p < 0.001

 15

2078

24.59

98.32

1.68

 16

1585

18.76

95.81

4.19

 17

1579

18.69

93.45

6.54

 18

1920

22.73

89.97

10.03

 19

1286

15.22

89.43

10.57

Age at sexual debut

p < 0.001

 Less than 15 years

6177

73.12

97.86

2.14

 Between 15 and 19

2271

26.88

82.34

17.66

level of education

p < 0.001

 No Education

2182

25.83

84.85

15.15

 Primary

880

10.42

92.75

7.25

 Secondary & above

5385

63.74

97.43

2.57

Marital status

p < 0.001

 Never married

6471

76.60

99.53

0.47

 Currently Married

1870

22.14

74.08

25.92

 Cohabitating

56

0.67

70.41

29.59

 Previously Married

50

0.60

97.7

2.30

Working status

0.14

 Not working

5441

64.41

93.36

6.64

 Working

3007

35.59

94.29

5.71

Ethnicity

 Hausa

3368

39.86

88.96

11.04

 Yoruba

1118

13.24

98.36

1.64

 Igbo

1176

13.92

97.69

2.23

 Others

2786

32.98

95.84

4.16

Religion

p < 0.001

 Christianity

3528

41.76

97.59

2.41

 Islam

4879

57.75

90.87

9.13

 Traditionalist & others

42

0.49

93.29

6.71

Exposure to media

p < 0.001

 No

3060

36.23

89.84

10.16

 Yes

5388

63.77

95.88

4.12

Household-level

Place of residence

p < 0.001

 Urban

3813

45.14

97.31

2.69

 Rural

4635

54.86

90.71

9.29

Wealth index

p < 0.001

 Poorest

1427

16.89

89.36

10.64

 Poorer

1740

20.59

88.28

11.72

 Middle

1758

20.81

94

6.00

 Richer

1810

21.43

97.01

2.99

 Richest

1713

20.28

98.96

1.04

Sex of household head

p < 0.001

 Male

6929

82.02

92.84

7.16

 Female

1519

17.98

97.58

2.42

Region

p < 0.001

 North Central

1183

14.00

94.85

5.15

 North East

1497

17.73

92.70

7.30

 North West

2737

32.39

89.05

10.95

 South East

928

10.98

97.74

2.26

 South South

888

10.51

97.61

2.39

 South West

1215

14.38

98.27

1.73

Community literacy level

p < 0.001

 Low

2880

34.09

86.66

13.34

 Medium

2595

30.72

95.69

4.31

 High

2973

35.19

93.69

1.25

p < 0.001

 Low

5056

59.85

90.61

9.39

 Medium

310

3.67

96.84

3.16

 High

3082

36.48

98.42

1.58