## 3 Results
### Comparison of Original and Re-Estimated Models  
Table 16 presents the performance measures of the adjusted models compared to the original models' performance during the pandemic and post-pandemic periods. Regarding accuracy, it is visible that it is significantly higher for the models with adjusted coefficients than for the original models, except for the Durica-Adamko model, where it was pretty high already for the original model. Sensitivity also significantly arose for the Taffler-Tisshaw and Tomczak models in both years and for IN01 in 2021, Durica-Adamko in 2022 and the Virag-Hajdu model in 2022. In averages, the performance of the models either arose slightly or significantly or stayed approximately at the same level. From this point of view, the adjustment of the model's coefficients during an extraordinary period, \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{**Taffler–Tisshaw**} & \multicolumn{4}{c}{**2021**} & \multicolumn{4}{c}{**2022**} \\ \cline{2-7}  & \multicolumn{2}{c}{**Predicted**} & \multicolumn{4}{c}{**Predicted**} \\ \cline{2-7}  & **1** & **0** & **Total** & **1** & **0** & **Total** \\ \hline \multirow{2}{*}{**Actual**} & **1** & 10 & 3 & 13 & 7 & 4 & 11 \\ \cline{2-7}  & **0** & 10 & 57 & 67 & 9 & 60 & 69 \\ \hline \multirow{2}{*}{**Total**} & \multirow{2}{*}{20} & \multirow{2}{*}{60} & \multirow{2}{*}{80} & \multirow{2}{*}{16} & \multirow{2}{*}{64} & \multirow{2}{*}{80} \\ \cline{2-7}  & & & & & & & **2022** & \\ \cline{2-7}  & \multicolumn{2}{c}{**Predicted**} & \multicolumn{4}{c}{**Predicted**} \\ \cline{2-7}  & **1** & **0** & **1** & **0** & **1** & **0** & **Total** \\ \hline \multirow{2}{*}{**Actual**} & **1** & 8 & 4 & 12 & 7 & 3 & 10 \\ \cline{2-7}  & **0** & 8 & 60 & 68 & 10 & 60 & 70 \\ \hline \multirow{2}{*}{**Total**} & \multirow{2}{*}{16} & \multirow{2}{*}{64} & \multirow{2}{*}{80} & \multirow{2}{*}{17} & \multirow{2}{*}{63} & \multirow{2}{*}{80} \\ \cline{2-7}  & & & & & & & **2022** & \\ \cline{2-7}  & \multicolumn{2}{c}{**Predicted**} & \multicolumn{4}{c}{**Predicted**} \\ \cline{2-7}  & **1** & **0** & **1** & **0** & **1** & **0** & **Total** \\ \hline \multirow{2}{*}{**Actual**} & **1** & 11 & 2 & 13 & 6 & 4 & 10 \\ \cline{2-7}  & **0** & 18 & 44 & 62 & 7 & 54 & 61 \\ \hline \multirow{2}{*}{**Total**} & \multirow{2}{*}{29} & \multirow{2}{*}{46} & \multirow{2}{*}{75} & \multirow{2}{*}{13} & \multirow{2}{*}{58} & \multirow{2}{*}{71} \\ \cline{2-7}  & & & & & & **2021** & \\ \cline{2-7}  & \multicolumn{2}{c}{**Predicted**} & \multicolumn{4}{c}{**Predicted**} \\ \cline{2-7}  & **1** & **0** & **1** & **0** & **1** & **0** & **Total** \\ \hline \multirow{2}{*}{**Actual**} & **1** & 2 & 5 & 7 & 4 & 4 & 8 \\ \cline{2-7}  & **0** & 11 & 62 & 73 & 9 & 63 & 72 \\ \hline \multirow{2}{*}{**Total**} & \multirow{2}{*}{13} & \multirow{2}{*}{67} & \multirow{2}{*}{80} & \multirow{2}{*}{13} & \multirow{2}{*}{67} & \multirow{2}{*}{80} \\ \cline{2-7}  & & & & & & **2022** & \\ \cline{2-7}  & \multicolumn{2}{c}{**Predicted**} & \multicolumn{4}{c}{**Predicted**} \\ \cline{2-7}  & **1** & **0** & **1** & **0** & **1** & **0** & **Total** \\ \hline \multirow{2}{*}{**Actual**} & **1** & 7 & 6 & 13 & 6 & 5 & 11 \\ \cline{2-7}  & **0** & 6 & 61 & 67 & 6 & 63 & 69 \\ \hline \multirow{2}{*}{**Total**} & \multirow{2}{*}{13} & \multirow{2}{*}{67} & \multirow{2}{*}{80} & \multirow{2}{*}{12} & \multirow{2}{*}{68} & \multirow{2}{*}{80} \\ \cline{2-7}  & & & & & & & **2022** & \\ \cline{2-7}  & \multicolumn{2}{c}{**Predicted**} & \multicolumn{4}{c}{**Predicted**} \\ \cline{2-7}  & **1** & **0** & **1** & **0** & **1** & **0** & **Total** \\ \hline \multirow{2}{*}{**Actual**} & **1** & 7 & 6 & 13 & 6 & 5 & 11 \\ \cline{2-7}  & **0** & 6 & 61 & 67 & 6 & 63 & 69 \\ \hline \multirow{2}{*}{**Total**} & \multirow{2}{*}{13} & \multirow{2}{*}{67} & \multirow{2}{*}{80} & \multirow{2}{*}{12} & \multirow{2}{*}{68} & \multirow{2}{*}{80} \\ \cline{2-7}  & & & & & & & **2022** & \\ \hline \hline \end{tabular}
\end{table} 
Table 15: Confusion matrices for adjusted models.