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Table 2 Contributing factors of inequality in short birth interval in Ethiopia, EDHS 2016

From: Socioeconomic inequality in short birth interval in Ethiopia: a decomposition analysis

Variables

Coefficient

Elasticity

Concentration index

Standard errorϯ

Absolute contribution

Percentage contribution (%)

Maternal age at first marriage (ref: 30+ years)

  ≤ 19

0.0873

0.1560

− 0.0021

0.0649

− 0.0003

 

 20–24

0.1581**

0.0495

0.0106

0.0678

0.0005

 

 25–29

0.2047*

0.0141

− 0.0261

0.0737

− 0.0004

 

 Subtotal

    

−0.0002

0.4

Maternal age at birth of the preceding child (ref: 35+ years)

  ≤ 19

0.0283

0.0095

− 0.0439

0.0316

− 0.0001

 

 20–24

0.0422

0.0295

− 0.0086

0.0224

− 0.0002

 

 25–29

0.0130

0.0077

0.0122

0.0203

0.0001

 

 30–34

−0.0175

− 0.0064

0.0227

0.0224

−0.0001

 

 Subtotal

    

−0.0003

0.6

Maternal educational level (ref: No education)

 Primary

0.0149

0.0072

0.1359

0.0154

0.0006

 

 Secondary

0.0394

0.0023

0.3326

0.0260

0.0008

 

 Higher

0.1580*

0.0049

0.3621

0.0412

0.0018

 

 Subtotal

    

0.0032

−6.7

Maternal occupation (ref: Working)

 Not working

0.0333*

0.0531

−0.0226

0.0119

−0.0012

 

 Subtotal

    

−0.0012

2.5

Wealth quintiles (ref: Richest)

 Poorest

0.1201*

0.0622

−0.7369

0.0183

−0.0258

 

 Poorer

0.0920*

0.0457

−0.3107

0.0198

−0.0202

 

 Middle

0.0799*

0.0342

0.1108

0.0193

0.0038

 

 Richer

0.0477**

0.0190

0.4982

0.0222

0.0067

 

 Subtotal

    

−0.0355

74.2

Place of residence (ref: Rural)

 Urban

−0.1402*

−0.0273

− 0.3215

0.0180

0.0089

 

 Subtotal

    

0.0089

−18.6

Regions (ref: Dire Dawa)

 Tigray

−0.2007*

− 0.0264

−0.1049

0.0314

0.0028

 

 Afar

0.0543

0.0012

−0.8091

0.0313

−0.0009

 

 Amhara

−0.2596**

− 0.1065

−0.0091

0.0313

0.0009

 

 Oromia

−0.0361

−0.0354

0.0679

0.0239

−0.0024

 

 Somali

0.1496*

0.0161

−0.6359

0.0272

− 0.0102

 

 Benishangul-Gumuz

−0.0539

−0.0013

− 0.1488

0.0299

0.0002

 

 SNNPRa

−0.0900*

−0.0415

0.0669

0.0261

−0.0018

 

 Gambella

−0.1669*

−0.0008

− 0.4752

0.0313

0.0004

 

 Harari

−0.0099

−0.0001

0.0685

0.0295

−0.0001

 

 Addis Ababa

−0.1029*

−0.0034

0.4347

0.0367

−0.0015

 

 Subtotal

    

−0.0126

26.4

Total number of children born before the index child (reference: 5+)

  ≤ 2

−0.0965*

− 0.0651

0.0289

0.0192

−0.0019

 

 3–4

−0.0606*

−0.0402

− 0.0315

0.0146

0.0013

 

 Subtotal

    

−0.0006

1.3

Watched television (ref: Yes)

 No

0.0308

0.0566

−0.0322

0.0188

−0.0018

 

 Subtotal

    

−0.0018

3.8

Listened to the radio (ref: Yes)

 No

0.0204**

0.0336

−0.0820

0.0140

−0.0027

 

 Subtotal

    

−0.0027

5.6

Read newspapers (ref: Yes)

 No

0.0376

0.0785

−0.0147

0.0230

−0.0011

 

 Subtotal

    

−0.0011

2.3

Explained

    

−0.0435

91.8

Residual

    

0.0039

8.2

  1. ref = reference group; aSNNPR Southern Nations, Nationalities, and Peoples’ Region, EDHS Ethiopia Demographic and Health Survey
  2. Note: Estimates are weighted; ϯ bootstrapped standard errors with 1000 replications; * and ** indicate significance at less than 0.01 and 0.05 levels, respectively