Table 3 Contributing factors of socio-economic inequality in modern contraceptive utilization in Sub-Sharan Africa

Regions of SSA

East

Central*

−0.1355

−0.0808

−0.0094

0.0008

1.01

south *

0.0425

0.0385

−0.0024

−0.0001

−0.13

West *

−0.0980

− 0.1521

− 0.0042

0.0006

0.76

Subtotal

0.0013

1.64

Age

15–19

20–24*

0.1445

0.1061

0.0270

0.0029

3.67

25–29*

0.1714

0.1201

0.0208

0.0025

3.16

30–34*

0.1794

0.1029

0.0043

0.0004

0.50

35–39*

0.1747

0.0853

−0.0185

−0.0016

−2.03

40–44*

0.1432

0.0513

−0.0409

− 0.0021

−2.66

45–49*

0.0641

0.0188

−0.0647

−0.0012

−1.52

Subtotal

0.0009

1.12

Residence

Urban

Rural *

−0.0113

−0.0269

−0.7101

0.0191

24.17

Currently working

No

Yes *

0.0195

0.1257

−0.0514

−0.0065

−8.22

Marital status

Single

Married*

0.0310

0.0784

−0.1512

−0.0119

−15.06

Divorced/widowed*

0.0232

0.0081

−0.0443

−0.0004

− 0.51

Sub total

−0.0123

−15.57

Educational level

no education

Primary *

0.0488

0.0335

−0.1822

−0.0061

−7.72

Secondary*

0.0257

0.0189

0.1517

0.0029

3.67

Higher *

0.0220

0.0046

0.5228

0.0024

3.04

Sub total

−0.0008

−1.01

Sex of household head

Male

Female*

−0.0052

−0.0057

0.0239

−0.0001

− 0.13

Mass media exposure

No

Yes *

0.0322

0.0903

0.4677

0.0422

53.45

Distance of health facility

Not big problem

Big problem*

−0.0177

−0.0266

−0.3954

0.011

13.92

Decision on maternal health

Respondent

Both *

−0.0117

−0.0107

−0.0070

0.0001

0.13

Husband alone*

−0.0521

−0.1392

0.0058

−0.0008

−1.01

Sub total

−0.0007

−0.88

Wealth index

Poorest

Poorer *

0.0203

0.0150

−0.5725

−0.0086

−10.89

Middle *

0.0295

0.0227

−0.1110

−0.0025

−3.16

Richer *

0.0370

0.0311

0.3962

0.0123

15.57

Richest *

0.0248

0.0237

0.824

0.0195

24.72

Sub total

0.0249

26.24