Variable (coefficients) | BZIP | CZIP | SE comparison | ||
---|---|---|---|---|---|
Mean (\(\hat{\beta }\)) | SEβ | \(\hat{\beta }\) | SEC | ||
Count model coefficients | |||||
β1 (Intercept) | 1.011 | 0.00936 | 1.2842217 | 0.2059540 | SEB < SEC |
Sign of pregnancy (reference-no) | |||||
β2 (Sign1) | − 0.4264 | 0.008106 | − 0.2274489 | 0.1634150 | SEB < SEC |
Utilization of media (reference-no use of media) | |||||
β3 (Media1) | − 0.4594 | 0.00528 | − 0.1195001 | 0.1126641 | SEB < SEC |
Mothers’ education (reference-no education) | |||||
β4 (M.educ1)) | 0.257 | 0.005599 | 0.1297838 | 0.1311842 | SEB < SEC |
Wealth index (reference-poor) | |||||
β5 (WI2) | − 0.6421 | 0.0059115 | − 0.0008455 | 0.1415231 | SEB < SEC |
β6 (WI3) | − 0.2698 | 0.0061565 | − 0.2849420 | 0.1284985 | SEB < SEC |
Area of residence (reference-urban) | |||||
β7 (Resid2) | 0.3495 | 0.005184 | − 0.1651500 | 0.1112927 | SEB < SEC |
Zero-inflation coefficients | |||||
α1 (Intercept) | 0.755 | 0.01022 | − 0.9996 | 0.6643 | SEB < SEC |
Sign of pregnancy (reference-no) | |||||
α2 (Sign1) | − 0.227 | 0.008966 | 0.8967 | 0.5979 | SEB < SEC |
Utilization of media (reference-no use of Media) | |||||
α3 (M.educ1) | − 0.335 | 0.0067768 | 0.5212 | 0.2495 | SEB < SEC |
Mothers’ education (reference-no education) | |||||
α4 (M.educ1) | − 0.608 | 0.0077152 | − 0.1314 | 0.3061 | SEB < SEC |
Wealth index (reference-poor) | |||||
α5 (WI2) | − 0.517 | 0.0071417 | − 0.3718 | 0.2914 | SEB < SEC |
α6 (WI3) | 0.04589 | 0.009435 | − 0.6181 | 0.2932 | SEB < SEC |
Area of residence (reference-urban) | |||||
α7 (Resid2) | 0.124 | 0.0067351 | 0.4702 | 0.2758 | SEB < SEC |