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 | Â | Â | Â | Â | 0.0039 | 8.2 |