## 3 Results  
In this study, 20 of 22 patients had ADHD-C, and, therefore, most of the recruited patients exhibited hyperactive symptoms. The mean durations of analyses before and after treatment were 329.74 \(\pm\) 182.33 and 244.18 \(\pm\) 81.12 s, respectively.  
The SNAP scores obtained from parents before and after 1 month of methylphenidate treatment were 42.61 \(\pm\) 12.05 and 37.72 \(\pm\) 12.72 (\(p\) = 0.1438), respectively; the SNAP scores from teachers before and after 1 month of treatment were 38.76 \(\pm\) 11.81 and 32.15 \(\pm\) 15.19 (\(p\) = 0.082), respectively (Table 1). SNAP scores, given by the parents and teachers, did not differ between before and after 1 month of medication. However, when we looked at hyperactivity subscales obtained from parents and teachers, both of them demonstrated significant decreases after 1 month of medication (Table 2).  
The variance, zero-crossing rate, and high energy rate in patients with ADHD all decreased significantly after 1 month of methylphenidate use. The variance values before and after 1 month of methylphenidate treatment were 2239.59 \(\pm\) 3314.47 and 480.36 \(\pm\) 871.35 (\(p\) = 0.0067), respectively; the zero-crossing rate values before and after 1 month of treatment were 1.0112 \(\pm\) 0.7547 and 0.4499 \(\pm\) 0.5588 (\(p\) = 0.0005), respectively, and the high energy rate values before and after 1 month of treatment were 0.5062 \(\pm\) 0.2815 and 0.2883 \(\pm\) 0.2644 (\(p\) = 0.0003), respectively (Table 3). Figure 3 shows the raw data of measurements from one patient before and after 1 month of methylphenidate treatment; the patient fidgeted significantly less while sitting after 1 month of treatment. The Pearson correlation coefficient was used to check the correlation between the reduction rate of objective measurements (variance, zero cross rate and high energy rate) and subjective measurements from SNAP. The results showed that the correlation coefficient between the objective and subjective measurements was not significantly correlated.  
\begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Sex (M/F)** & **Age** & **Subtype** & **SNAP Score** & **SNAP Score** & **Reduction** \\  & **(C/I)** & **Before Medication** & **After Medication** & **Percentage** \\ \hline \(18/4\) & 8y4m \(\pm\) 2y6m & 20/2 & 42.61 \(\pm\) 12.05 (parents) & 37.72 \(\pm\) 12.72 (parents) & 11.48\% \\  & & 38.76 \(\pm\) 11.81 (teacher) & 32.15 \(\pm\) 15.19 (teacher) & 17.05\% \\ \hline \hline \end{tabular}
\end{table}
Table 1: Demographic data of patients with ADHD.  
\begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Parameters** & **Before Treatment** & **After Treatment** & **Reduction Rate** & \(p\)**Value** \\ \hline Inattentiveness (P) & 16.00 \(\pm\) 5.46 & 14.28 \(\pm\) 4.78 & 10.75\% & 0.3521 \\ Hyperactivity (P) & 15.22 \(\pm\) 5.27 & 12.00 \(\pm\) 5.41 & 21.16\% & 0.0147 * \\   Oppositional (P) & 11.39 \(\pm\) 5.02 & 10.89 \(\pm\) 5.81 & 4.39\% & 0.7088 \\   Inattentiveness (T) & 15.00 \(\pm\) 4.66 & 15.46 \(\pm\) 5.49 & \(-\)3.07\% & 0.7921 \\ Hyperactivity (T) & 14.08 \(\pm\) 7.12 & 9.62 \(\pm\)7.10 & 31.68\% & 0.0330 * \\   Oppositional (T) & 9.69 \(\pm\) 5.38 & 7.08 \(\pm\) 5.58 & 26.93\% & 0.076 \\ \hline \hline \end{tabular}
\end{table}
Table 2: Comparison of subscales of SNAP in patients of ADHD before and after treatment.