Modeling Hospitalization Decision and Utilization for the Elderly in China

Table 2

Model comparison based on the AIC, BIC, and log-likelihood of six regression models.

Model	Number of parameters	Log-likelihood	AIC	BIC
Poisson	18	4,443.5	8,923	9,041.315
Negative binomial	19	4,089.657	8,217.313	8,342.201
Zero-inflated Poisson	36	3,444.408	6,960.817	7,197.445
Zero-inflated negative binomial	37	3,411.642	6,897.285	7,140.486
Hurdle Poisson	36	4,032.43	8,136.861	8,348.498
Hurdle negative binomial	37	3,942.265	7,958.531	8,175.353