Table 1.

Estimates of the parameters of the fitted model for COVID-19 vaccination coverages. Reported are the posterior means and the 95% credible intervals (CI) of the exponentiated regression coefficients and other parameters. The categories - travel time within 1 hr, percentage population in urban areas and percentage population under 58 years - were the reference parameters for mean travel time, Rural/Urban and age covariates, respectively.

Parameter	Mean	Credible Intervals (5%, 95%)
Intercept	0.015	(0.010, 0.021)
Week	1.070	(1.070, 1.070)
Mean travel time
<1 hr	1.000	–
1–2 hrs	0.935	(0.586, 1.417)
2–3 hrs	0.502	(0.274, 0.845)
>3 hrs	0.319	(0.180, 0.526)
Rural/Urban
% of population in Urban	1.000	–
% of population in Rural	0.722	(0.616, 0.842)
Age
% of population under 58 years	1.000	–
% of population over 58 years	1.376	(1.135, 1.652)
Random effects (Hyperparameters)
Precision for Month ($\tau$)	38.441	(9.298, 87.099)
Autocorrelation parameter for Month ($\rho$)	0.742	(0.461, 0.806)
Precision for County (${\tau }_{\omega }$)	3.703	(2.344, 5.465)