Research Article
On Zero-Inflated Hierarchical Poisson Models with Application to Maternal Mortality Data
Table 3
Maternal mortality data. Parameter estimates and standard errors (s.e.) for the zero-inflated Poisson GLMM (ZIPG).
| | Estimates (s.e.) | Pr (>│z│) |
| ZIPG | Conditional model | Intercept | 2.3553 (0.3884) | <0.001 | Referral in | 0.0010 (0.0003) | <0.001 | Referral out | −0.0143 (0.0030) | <0.001 | Malaria | −0.0008 (0.0005) | 0.150 | HIV/AIDS | −0.0017 (0.0022) | 0.434 | Doctors | −0.7479 (0.0192) | <0.001 | Midwives | 0.0978 (0.0042) | <0.001 | ANC | 0.0015 (0.0006) | <0.001 |
| Zero-inflation model | Intercept | 3.6729 (0.5349) | <0.001 | Referral in | −0.0472 (0.0200) | 0.018 | Referral out | 0.0161 (0.0106) | 0.129 | Midwives | −0.2972 (0.0570) | <0.001 |
| Random effects | Groups | Name | Variance | Year | Intercept | 0.1279 | Region | Intercept | 0.4067 |
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