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Table 7 Summary statistic of the posterior distribution of the model parameters

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

Parameter Bayesian Negative Binomial-logit hurdle (NBLH)
Count model coefficients Parameter Zero hurdle model coefficients
Mean SD HPD of 95% CrI Mean SD HPD of 95% CrI
\({\beta }_{0}\) 0.100 0.043 (0.025, 0.193)     
\({\beta }_{1}\) − 3.933 0.712 (− 5.174, − 0.320) \({\gamma }_{1}\) − 2.263 0.147 (− 2.559, − 1.982)
\({\beta }_{2}\) − 0.292 0.049 (− 0.387, − 0.196) \({\gamma }_{2}\) − 0.224 0.051 (− 0.324, − 0.124)
\({\beta }_{3}\) − 0.137 0.081 (− 0.294, 0.023) \({\gamma }_{3}\) 0.129 0.079 (− 0.028, 0.283)
\({\beta }_{4}\) − 0.385 0.075 (− 0.534, − 0.239) \({\gamma }_{4}\) − 0.212 0.061 (− 0.331, − 0.094)
\({\beta }_{5}\) − 0.803 0.533 (− 1.988, 0.114) \({\gamma }_{5}\) − 1.149 0.228 (− 1.613, − 0.717)
\({\beta }_{6}\) − 0.044 0.067 (− 0.177, 0.088) \({\gamma }_{6}\) − 0.047 0.073 (− 0.192, 0.098)
\({\beta }_{7}\) − 0.123 0.062 (− 0.246, − 0.002) \({\gamma }_{7}\) − 0.071 0.067 (− 0.201, 0.059)
\({\beta }_{8}\) 3.570 0.713 (1.973, 4.845) \({\gamma }_{8}\) 1.394 0.115 (1.173, 1.628)
\({\beta }_{9}\) 4.735 0.709 (3.144, 6.004) \({\gamma }_{9}\) 2.782 0.117 (2.556, 3.019)
\({\beta }_{10}\) 0.442 0.115 (0.211, 0.662) \({\gamma }_{10}\) 0.877 0.176 (0.533, 1.221)
\({\beta }_{11}\) − 0.182 0.051 (− 0.282, − 0.081) \({\gamma }_{11}\) − 0.296 0.062 (− 0.420, − 0.174)
\({\beta }_{12}\) − 0.346 0.156 (− 0.660, − 0.048) \({\gamma }_{12}\) − 0.315 0.132 (− 0.575, − 0.057)
\({\beta }_{13}\) − 0.310 0.068 (− 0.444, − 0.17) \({\gamma }_{13}\) − 0.280 0.060 (− 0.400, − 0.161)
\({\beta }_{14}\) − 0.185 0.053 (− 0.291, − 0.082) \({\gamma }_{14}\) − 0.272 0.051 (− 0.371, − 0.172)
  1. *Intercept (\({\beta }_{0}\)); Mothers age: 30–39 (\({\beta }_{1} \& {\gamma }_{1}\)), 40–49 (\({\beta }_{2} \& {\gamma }_{2}\)); Rural (\({\beta }_{3} \& {\gamma }_{3}\)); education level: Primary and Secondary (\({\beta }_{4} \& {\gamma }_{4}\)) and Higher (\({\beta }_{5} \& {\gamma }_{5}\)); wealth index: Middle (\({\beta }_{6}\&{\gamma }_{6}\)), Rich (\({\beta }_{7}\&{\gamma }_{7}\)); Birth order number: 2–4 (\({\beta }_{8}\&{\gamma }_{8}\)),5 + (\({\beta }_{9}\&{\gamma }_{9}\))3–4 (β9); twin (\({\beta }_{10}\&{\gamma }_{10}\)); mother’s age at the first birth: 16–25 (\({\beta }_{11}\&{\gamma }_{11}\)), ≥ 26 (\({\beta }_{12}\&{\gamma }_{12}\)); Current contraceptive method of using (\({\beta }_{13}\&{\gamma }_{13}\)); antenatal visits (\({\beta }_{14}\&{\gamma }_{14}\)).