## 3 Results  
One hundred and twenty-five modified PSQs were completed correctly. Of these, only one was excluded as the child presented neuromuscular disorders. Of the 124 children, the average age was 5.69 \(\pm\) 2.78 (SD), and the range was 3-14 years. There were 62 (50%) males with an average age of 6 \(\pm\) 3.02 (SD) and 62 (50%) females with an average age of 5.38 \(\pm\) 2.51 (SD). Relating to the evaluation of the additional items, the highest sensitivity (80.0, 95% CI: 28.4; 99.5), in combination with the highest specificity (61.1, 95% CI: 35.7; 82.7), was found for Item 32 (LR+: 2.1, 95% CI: 1.0; 4.3 and LR-: 0.3, 95% CI: 0.0; 1.9). The highest specificity (97.5, 95% CI: 92.8; 99.5), in combination with the highest sensitivity (40.0, 95% CI: 5.3; 85.3), was found for Item 33 (LR+: 15.7, 95% CI: 3.3; 74.1 and LR-: 0.6, 95% CI: 0.3; 1.3) (Table 2). \begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline
**Item** & **TP** & **FP** & **FN** & **TN** & **Se (95\% CI)** & **Sp (95\% CI)** & **PPV (95\% CI)** & **NPV (95\% CI)** & **LR+ (95\% CI)** & **LR- (95\% CI)** \\ \hline
23 & 5 & 118 & 0 & 0 & \begin{tabular}{c} 100.0 \\ (48.8;100.0) \\ \end{tabular}  & \begin{tabular}{c} 0.0 \\ (0.0;3.1) \\ \end{tabular}  & \begin{tabular}{c} 4.1 \\ (4.1;4.1) \\ \end{tabular}  & \ \begin{tabular}{c} – \\ (1.0;1.0) \\ \end{tabular}  & \begin{tabular}{c} 1.0 \\ (1.0;1.0) \\ \end{tabular}  & – \\ \hline
24 & 1 & 8 & 4 & 110 & \begin{tabular}{c} 20.0 \\ (0.5;71.6) \\ \end{tabular}  & \begin{tabular}{c} 93.2 \\ (87.1;97.0) \\ \end{tabular}  & \begin{tabular}{c} 11.1 \\ (1.9;44.9) \\ \end{tabular}  & \begin{tabular}{c} 96.5 \\ (94.7;97.7) \\ \end{tabular}  & \ \begin{tabular}{c} 3.0 \\ (0.5;19.9) \\ \end{tabular}  & \begin{tabular}{c} 0.9 \\ (0.6;1.3) \\ \end{tabular}  \\ \hline
25 & 1 & 0 & 4 & 118 & \begin{tabular}{c} 20.0 \\ (0.5;71.6) \\ \end{tabular}  & \begin{tabular}{c} 100.0 \\ (96.9;100.0) \\ \end{tabular}  & – & \ \begin{tabular}{c} 100.0 \\ (95.0;97.9) \\ \end{tabular}  & – & \begin{tabular}{c} 0.8 \\ (0.5;1.2) \\ \end{tabular}  \\ \hline
26 & 3 & 52 & 2 & 66 & \begin{tabular}{c} 60.0 \\ (14.7;94.7) \\ \end{tabular}  & \begin{tabular}{c} 55.9 \\ (46.5;65.1) \\ \end{tabular}  & \begin{tabular}{c} 5.5 \\ (2.7;10.8) \\ \end{tabular}  & \begin{tabular}{c} 97.9 \\ (91.8;99.0) \\ \end{tabular}  & \ \begin{tabular}{c} 1.4 \\ (0.7;2.9) \\ \end{tabular}  & \begin{tabular}{c} 0.7 \\ (0.2;2.1) \\ \end{tabular}  \\ \hline
27 & 1 & 14 & 4 & 104 & \begin{tabular}{c} 20.0 \\ (0.5;71.6) \\ \end{tabular}  & \begin{tabular}{c} 88.1 \\ (80.9;93.4) \\ \end{tabular}  & \begin{tabular}{c} 6.7 \\ (1.1;30.6) \\ \end{tabular}  & \begin{tabular}{c} 96.3 \\ (94.4;97.6) \\ \end{tabular}  & \ \begin{tabular}{c} 1.7 \\ (0.3;10.4) \\ \end{tabular}  & \begin{tabular}{c} 0.9 \\ (0.6;1.4) \\ \end{tabular}  \\ \hline
28 & 1 & 13 & 4 & 105 & \begin{tabular}{c} 20.0 \\ (0.5;71.6) \\ \end{tabular}  & \begin{tabular}{c} 89.0 \\ (81.9;94.0) \\ \end{tabular}  & \begin{tabular}{c} 7.1 \\ (1.2;32.3) \\ \end{tabular}  & \begin{tabular}{c} 96.3 \\ (94.4;97.6) \\ \end{tabular}  & \ \begin{tabular}{c} 1.8 \\ (0.3;11.3) \\ \end{tabular}  & \begin{tabular}{c} 0.9 \\ (0.6;1.4) \\ \end{tabular}  \\ \hline
29 & 4 & 117 & 1 & 1 & \begin{tabular}{c} 80.0 \\ (28.4;99.5) \\ \end{tabular}  & \begin{tabular}{c} 0.9 \\ (0.0;4.6) \\ \end{tabular}  & \begin{tabular}{c} 3.3 \\ (2.2;5.0) \\ \end{tabular}  & \begin{tabular}{c} 50.0 \\ (6.8;96.2) \\ \end{tabular}  & \ \begin{tabular}{c} 0.8 \\ (0.5;1.3) \\ \end{tabular}  & \begin{tabular}{c} 23.6 \\ (1.7;235.3) \\ \end{tabular}  \\ \hline
30 & 1 & 44 & 4 & 74 & \begin{tabular}{c} 20.0 \\ (0.5;71.6) \\ \end{tabular}  & \begin{tabular}{c} 62.7 \\ (53.3;71.4) \\ \end{tabular}  & \begin{tabular}{c} 2.2 \\ (0.4;11.8) \\ \end{tabular}  & \begin{tabular}{c} 94.5 \\ (92.1;96.7) \\ \end{tabular}  & \ \begin{tabular}{c} 0.5 \\ (0.1;3.1) \\ \end{tabular}  & \begin{tabular}{c} 1.3 \\ (0.8;2.0) \\ \end{tabular}  \\ \hline
31 & 2 & 8 & 3 & 110 & \begin{tabular}{c} 40.0 \\ (5.3;85.3) \\ \end{tabular}  &