Table 3.

The parameters of the logistic model characterizing the relationship between the variable $Y_1:$ “Have you been infected with COVID-19?” and the variables $X_1$ and $Z_1$ (Model 1). Bold values indicate a statistically significant impact.

Source	Value	SE	${\chi }^{\mathrm{2}}$	$\mathbf{Pr} > {\chi }^{\mathrm{2}}$	OR	Lower CI (95%)	Upper CI (95%)
$a_1$	−0.931	0.219	18.090	<0.0001
${\beta }_2$	0.025	0.006	20.504	<0.0001	1.025	1.014	1.037
${\beta }_1$	−0.269	0.163	2.718	0.099	0.764	0.555	1.052