Table 3 Logistic regression results of the contraceptive use prior onset of childbearing by ever-married women’s sociodemographic characteristics

Age Group

 15–19

Ref

-

-

Ref

-

-

 20–24

0.62

0.52–0.74

< 0.01*

0.62

0.52–0.75

< 0.01*

 25–29

0.34

0.29–0.41

< 0.01*

0.36

0.30–0.43

< 0.01*

 30–34

0.24

0.20–0.28

< 0.01*

0.24

0.20–0.30

< 0.01*

 35–39

0.18

0.15–0.21

< 0.01*

0.18

0.14–0.22

< 0.01*

 40–44

0.12

0.10–0.15

< 0.01*

0.12

0.10–0.15

< 0.01*

 45–49

0.07

0.06–0.09

< 0.01*

0.07

0.05–0.09

< 0.01*

Age Group at First Union

 15–20 years old

Ref

-

-

Ref

-

-

 ≥21 years old

0.61

0.56–0.68

< 0.01*

0.90

0.81-1.00

0.060

Place of Residence

 Urban

Ref

-

-

Ref

-

-

 Rural

1.73

1.52–1.96

< 0.01*

0.89

0.64–1.24

0.485

Ideal Family Size

 ≥ 3

Ref

-

-

Ref

-

-

 < 3

1.76

1.59–1.95

< 0.01*

1.41

1.27–1.56

< 0.01*

Employment Status

 No

Ref

-

-

Ref

-

-

 Yes

0.77

0.70–0.85

< 0.01*

1.13

1.01–1.25

0.029*

Level of Education

 No education

Ref

-

-

Ref

-

-

 Primary

2.82

2.06–3.85

< 0.01*

1.20

0.77–1.88

0.426

 Secondary

2.83

2.08–3.85

< 0.01*

1.29

0.81–2.06

0.285

 Higher

1.68

1.19–2.36

0.003*

0.40

0.15–1.11

0.080

Wealth Index

 Poorest

Ref

-

-

Ref

-

-

 Poorer

1.23

1.05–1.45

0.009*

0.36

0.15–0.86

0.022*

 Middle

1.16

0.99–1.37

0.061

0.20

0.07–0.58

0.003*

 Richer

1.07

0.91–1.27

0.424

0.19

0.04–1.04

0.056

 Richest

0.65

0.55–0.78

< 0.01*

1.92

0.47–7.83

0.361

Region

 Java

Ref

-

-

Ref

-

-

 Sumatra

0.31

0.27–0.37

< 0.01*

0.29

0.25–0.34

< 0.01*

 Kalimantan

1.34

1.14–1.57

< 0.01*

1.16

0.98–1.38

0.075

 Celebes

0.34

0.28–0.41

< 0.01*

0.29

0.24–0.35

< 0.01*

 Nusa Tenggara and Bali

0.36

0.29–0.46

< 0.01*

0.34

0.27–0.43

< 0.01*

 Papua and Maluku

0.16

0.12–0.22

< 0.01*

0.14

0.10–0.20

< 0.01*

Year

 2002–2003

Ref

-

-

Ref

-

-

 2007

1.34

1.10–1.62

0.003*

1.41

1.16–1.71

0.001*

 2012

0.10

0.08–0.14

< 0.01*

0.11

0.08–0.15

< 0.01*

 2017

1.33

1.11–1.60

0.002*

1.68

1.39–2.02

< 0.01*

Education with Wealth Index

 NoEducation #Poorest

Ref

-

-

Ref

-

-

 Primary#Poorer

1.79

0.77–4.17

0.178

1.98

0.85–4.64

0.114

 Primary#Middle

3.23

1.19–8.80

0.022*

3.47

1.24–9.72

0.018*

 Primary#Richer

3.34

0.63–17.75

0.157

3.42

0.63–18.47

0.153

 Primary#Richest

0.30

0.07–1.23

0.095

0.31

0.07–1.26

0.102

 Secondary #Poorer

1.76

0.75–4.13

0.197

1.80

0.76–4.27

0.181

 Secondary#Middle

2.77

1.02–7.53

0.046*

2.61

0.93–7.32

0.069

 Secondary#Richer

3.19

0.60-16.87

0.172

2.87

0.53–15.37

0.219

 Secondary#Richest

0.23

0.06–0.94

0.040*

0.23

0.06–0.92

0.038

 Higher#Poorer

4.72

1.35–16.46

0.015*

4.84

1.33–17.61

0.017*

 Higher#Middle

13.62

3.48–53.37

< 0.01*

12.67

3.12–51.48

< 0.01*

 Higher#Richer

10.94

1.63–73.21

0.014*

7.90

1.15–54.08

0.035*

 Higher#Richest

1.10

0.21–5.67

0.912

0.72

0.14–3.78

0.696

Wealth index with Place of Residence

 Poorer#Rural

1.84

1.29–2.60

0.001*

1.75

1.22–2.51

0.002*

 Middle#Rural

2.11

1.45–3.05

< 0.01*

2.10

1.43–3.08

< 0.01*

 Richer#Rural

2.26

1.57–3.24

< 0.01*

2.35

1.61–3.42

< 0.01*

 Richest#Rural

1.90

1.25–2.89

0.003*

1.93

1.25–2.98

0.003*