| Count regression result (Hurdle–Poisson regression model) | Variables | Categories | Estimates | AOR (95% CI for OR) | value |
| Pregnancy complication | Intercept | 1.140 | 3.128 (2.952, 3.315) | ≤0.001 | No | Ref | 1 | | Yes | 0.145 | 1.156(1.111, 1.203) | ≤0.001 |
| Husband education | No education | Ref | 1 | | Primary | 0.018 | 1.018(1.035, 1.864) | 0.004 | Secondary | 0.110 | 1.117(1.047, 1.191) | ≤0.001 | Higher | 0.175 | 1.191(1.102, 1.287) | ≤0.001 |
| Wealth index | Poorer | Ref | 1 | | Middle | 0.077 | 1.080(1.022, 1.142) | 0.006 | Richer | 0.095 | 1.100(1.050, 1.152) | ≤0.001 |
| Region | Tigray | Ref | 1 | | Afar | −0.176 | 0.839(0.760, 0.926) | ≤0.001 | Amhara | −0.045 | 0.956(0.890, 1.026) | 0.211 | Oromia | − | 0.906(0.845, 0.972) | 0.006 | Somali | −0.283 | 0.753(0.682, 0.832) | ≤0.001 | Benishangul | −0.035 | 0.965(0.897, 1.039) | 0.349 | SNNPR | −0.021 | 0.979(0.918, 1.045) | 0.531 | Gambela | 0.003 | 1.00(0.917, 1.099) | 0.940 | Harari | −0.092 | 0.912(0.825, 1.008) | 0.073 | Dire dawa | 0.280 | 1.323(1.205, 1.453) | ≤0.001 |
| Logistic regression result | Maternal age | Intercept | 2.000 | 7.392(3.386, 16.140) | ≤0.0001 | 15–24 | Ref | 1 | | 25–34 | 0.0157 | 1.016(0.870, 1.187) | 0.843 | 35–49 | −0.37051 | 0.690(0.577, 0.827) | ≤0.001 |
| Mothers education | No education | Ref | 1 | | Primary | 0.617 | 1.85(1.574, 2.183) | ≤0.001 | Secondary | 0.8701 | 2.387(1.560, 3.654) | ≤0.001 | Higher | 0.780 | 2.182(0.815, 5.84) | 0.120 |
| Media exposure | Not exposed | Ref | 1 | | Exposed | 0.556 | 1.745(1.098, 2.775) | 0.019 |
| Distance from health facility | No problem | Ref | 1 | | Problem | −0.289 | 0.75(0.73,0.98) | 0.013 |
| Pregnancy complication | No | Ref | 1 | | Yes | 1.136 | 3.114(2.703, 3.587) | ≤0.001 |
| Husband education | No education | Ref | 1 | | Primary | 0.426 | 1.531(1.327, 1.767) | ≤0.001 | Secondary | 0.861 | 2.366(1.811,3.092) | ≤0.001 | Higher | 0.807 | 2.244(1.553, 3.236) | ≤0.001 |
| Plan of pregnancy | Not planned | Ref | 1 | | Planned | 0.353 | 1.42(1.144, 1.770) | 0.002 |
| Wealth index | Poorer | Ref | 1 | | Middle | 0.489 | 1.631(1.360, 1.957) | ≤0.001 | Richer | 0.739 | 2.094(1.777, 2.467) | ≤0.001 |
| Region | Tigray | Ref | 1 | | Afar | −1.959 | 0.141(0.103, 0.193) | ≤0.001 | Amhara | −1.341 | 0.262(0.193, 0.354) | ≤0.001 | Oromia | −2.158 | 0.115(0.086, 0.154) | ≤0.001 | Somali | −2.225 | 0.1081(0.080, 0.147) | ≤0.001 | Benishangul | −1.364 | 0.256(0.186, 0.351) | ≤0.001 | SNNPR | −1.410 | 0.244(0.181, 0.330) | ≤0.001 | Gambela | −2.240 | 0.106(0.076, 0.150) | ≤0.001 | Harari | −1.638 | 0.194(0.132, 0.2853) | ≤0.001 | Dire dawa | −0.438 | 0.645(0.414, 1.004) | 0.052 |
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