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Table 5 Parameter estimations and SE for the models of HNB

From: Bayesian zero-inflated regression model with application to under-five child mortality

Parameter Negative Binomial-logit hurdle (NBLH)
Count model coefficients (truncated negbin with log link) OR Zero hurdle model coefficients (binomial with logit link) OR
Intercept − 10.60952 (35.602) 0.0001 − 2.40283*** (0.147) 0.091
Mothers age (ref =  <  = 29)
 30–39 0.232* (0.090) 1.261 0.223** (0.068) 1.250
 40–49 0.648*** (0.092) 1.912 0.803*** (0.081) 2.233
Place of residence (ref = Urban)
 Rural − 0.091 (0.080) 0.913 0.222** (0.079) 1.248
Mothers educational level (ref = No education)
 Primary and Secondary − 0.351*** (0.074) 0.704 − 0.183** (0.062) 0.833
 Higher − 0.587 (0.491) 0.556 − 1.144*** (0.226) 0.319
Wealth index combined (ref = poor)
 Middle − 0.08 (0.065) 0.923 − 0.109 (0.073) 0.319
 Rich − 0.175** (0.061) 0.840 − 0.168* (0.068) 0.897
Birth order number (ref = 1)
 2–4 9.955 (35.602) 2.106 1.227*** (0.114) 3.106
 5 +  10.864 (35.602) 5.228 2.326*** (0.1225) 1.024
Type of birth (ref = Single)
 Twin 0.451*** (0.1098) 1.571 0.915*** (0.178) 2.496
Mother’s age at the first birth (ref =  ≤ 15)
 16–25 − 0.221*** (0.050) 0.802 − 0.357*** (0.062) 0.700
 ≥ 26 − 0.476** (0.152) 0.621 − 0.634*** (0.135) 0.531
Current contraceptive method (ref = not using)
 Using − 0.313*** (0.067) 0.731 − 0.273*** (0.060) 0.761
Number of antenatal visits during pregnancy (ref = No antenatal visits)
 Antenatal visit − 0.088* (0.0528) 0.915 − 0.105 (0.054) 0.9003
 Log (theta) 3.0195*** (0.737)   
  1. Signif. Codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1