Time to death and its determinants among under-five children in Sub-Saharan Africa using the recent (2010–2018) demographic and health survey data: country-based shared frailty analyses

Table 5 Model comparison with different distributional assumptions

Model	Baseline hazard distribution	Frailty distribution	Frailty variance (θ, p-value)	AIC	BIC	LLR
Cox-model	NA	Gamma
Shard frailty	Exponential	Gamma	0.07, < 0.001	99,082.74	99,404.08	−49,510.37
Shard frailty	Weibull	Gamma	0.07, < 0.001	98,084.63	98,416.34	−49,010.32
Shard frailty	Gompertz	Gamma	0.07, < 0.001	96,693.04	97,024.74	−48,314.52
Shard frailty	Log-logistic	Gamma	The model didn’t converge
Shard frailty	Lognormal	Gamma	The model didn’t converge

Model with inverse Gaussian frailty distribution did not converge
AIC Akakian Information Criteria, BIC Bayesian Information Criteria, LLR Loglikelihood Ratio, NA Not Applicable

ISSN: 1471-2431