Variables | Model I | Model II AOR (95% CI) | Model III AOR (95% CI) | Model IV AOR (95% CI) |
---|---|---|---|---|
Maternal age | ||||
 15–19 Years |  | 1.61 (0.70, 3.67) |  | 1.59 (0.69, 3.59) |
 20–24 Years |  | 1.21 (0.69, 2.13) |  | 1.19 (0.68, 2.09) |
 25–29 Years |  | 1.20 (0.80, 1.80) |  | 1.12 (0.80, 1.79) |
 30–34 Years |  | 0.94 (0.58, 1.53) |  | 0.94 (0.58, 1.52) |
 35–39 Years |  | 0.64 (0.39, 1.01) |  | 0.64 (0.39, 1.01) |
 40–44 Years |  | 1.19 (0.71, 1.99) |  | 1.20 (0.72, 2.01) |
 45–49 Years |  | 1 |  | 1 |
Maternal education attainment | ||||
 No education |  | 2.43 (0.94, 6.30) |  | 2.33 (0.91, 5.98) |
 Incomplete primary |  | 2.68 (1.05, 6.86) |  | 2.61 (1.03, 6.59) * |
 Complete primary |  | 2.06 (0.52, 8.13) |  | 2.03 (0.50, 8.20) |
 Incomplete secondary |  | 1.32 (0.38, 4.65) |  | 1.28 (0.37, 4.49) |
 Complete secondary |  | 3.49 (0.69, 17.59) |  | 3.58 (0.70, 18.21) |
 Higher |  | 1 |  | 1 |
Wealth index | ||||
 Poorest |  | 1.10 (0.67, 1.81) |  | 0.95 (0.51, 1.78) |
 Poorer |  | 1.41 (0.88, 2.25) |  | 1.29 (0.74, 2.26) |
 Middle |  | 1.29 (0.78, 2.14) |  | 1.21 (0.68, 2.16) |
 Richer |  | 1.47 (0.89, 2.39) |  | 1.39 (0.70, 2.49) |
 Richest |  | 1 |  | 1 |
Number of babies at birth | ||||
 Singleton birth |  | 1 |  | 1 |
 Twin birth |  | 3.79 (2.48, 5.79) ** |  | 3.78 (2.47, 5.77) ** |
Sex of the child | ||||
 Male |  | 1.65 (1.32, 2.07) ** |  | 1.65 (1.32, 2.06) ** |
 Female |  | 1 |  | 1 |
Region | ||||
 Tigray |  |  | 1.01 (0.51, 1.99) | 0.84 (0.39, 1.77) |
 Afar |  |  | 0.83 (0.37, 1.84) | 0.72 (0.31, 1.69) |
 Amhara |  |  | 0.98 (0.53, 1.80) | 0.79 (0.39, 1.60) |
 Oromia |  |  | 1.16 (0.64, 2.12) | 0.89 (0.45, 1.79) |
 Somali |  |  | 1.26 (0.63, 2.52) | 1.12 (0.50, 2.52) |
 Benishangul |  |  | 1.47 (0.72, 3.01) | 1.16 (0.51, 2.61) |
 SNNPR*** |  |  | 0.84 (0.41, 1.69) | 0.63 (0.29, 1.37) |
 Gambela |  |  | 1.68 (0.73, 3.89) | 1.37 (0.55, 3.42) |
 Harari |  |  | 1.05 (0.57, 1.94) | 0.88 (0.44, 1.75) |
 Dire Dawa |  |  | 0.67 (0.34, 1.31) | 0.61 (0.29, 1.26) |
 Addis Ababa |  |  | 1 | 1 |
Place of residence | ||||
 Urban |  |  | 1 | 1 |
 Rural |  |  | 1.30 (0.93, 1.84) | 1.23 (0.79, 1.89) |
Altitude above sea level | ||||
  < 500 m |  |  | 0.62 (0.33, 1.16) | 0.65 (0.33, 1.26) |
 501–1500 m |  |  | 1.54 (1.05, 2.26) * | 1.49 (0.99, 2.22) |
 1501–2300 m |  |  | 1 | 1 |
  > 2300 m |  |  | 0.79 (0.55, 1.16) | 0.78 (0.54, 1.14) |