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

Regions of SSA

Central (ref)

-

-

-

-

-

East*

-0.0789

-0.1071

-0.0043

0.0005

- 0.318

West *

-0.0263

-0.0419

-0.0063

0.0003

-0.191

South *

-0.1138

-0.0240

-0.0007

0.00001

-0.006

Subtotal

-0.515

Age

15–19 (ref)

-

-

-

-

-

20–24*

-0.2685

-0.6813

0.0553

-0.0377

24.01

Religion

Christian

-0.0294

-0.07523

0.0415

-0.0031

1.97

Muslim

-0.0077

-0.0041

-0.0279

0.0001

0.063

Others (ref)

-

-

-

-

-

Subtotal

2.033

Residence

Urban (ref)

-

-

-

-

-

Rural

-0.0094

-0.0226

-0.6453

0.0146

-9.30

Currently working

No (ref)

-

-

-

-

-

Yes *

-0.0061

-0.0127

-0.1172

0.0015

-0.96

Marital status

Unmarried(ref)

-

-

-

-

-

Married*

-0.0094

-0.0168

-0.2103

0.0055

-3.50

educational level

no education(ref)

-

-

-

-

-

Primary

-0.0113

-0.0146

-0.1965

0.0029

-1.85

Secondary*

-0.1074

-0.1732

0.3327

-0.0576

36.68

Higher *

-0.2900

-0.0477

0.0971

-0.0046

2.93

Subtotal

37.76

Mass media exposure

No (ref)

-

-

-

-

-

Yes *

0.0374

0.1286

-0.2262

-0.0291

18.53

Experience with sexual violence

No (ref)

-

-

-

-

-

Yes *

0.0418

0.0083

-0.0125

-0.0001

0.064

Ever heard of STI

No (ref)

-

-

-

-

-

Yes *

0.0158

0.0553

0.0562

0.0041

-2.61

Ever chewing Khat

No (ref)

-

-

-

-

-

Yes *

0.1123

0.0116

0.0056

0.0001

-0.064

Wealth index

Poorest (ref)

-

-

-

-

-

Poorer *

-0.0037

-0.0029

-0.3498

0.0010

-0.64

Middle *

-0.0292

-0.0231

-0.0333

0.0008

-0.51

Richer *

-0.0393

-0.0332

0.3096

-0.0103

6.56

Richest *

-0.0858

-0.0724

0.6659

-0.0452

28.78

Subtotal

34.19

Country income level

Lower income (ref)

-

-

-

-

-

Lower middle income*

0.0291

0.0301

-0.0172

-0.0005

0.31

Upper middle income*

0.0563

0.0188

-0.0058

-0.0001

0.06

Subtotal

0.37