## 3 Results
\begin{table}
\begin{tabular}{c c c c c} \hline
**Feature** & **Mean \(\pm\) sd (s1)** & **Mean \(\pm\) sd (s2)** & **Mean \(\pm\) sd (\(\Delta\))** & **\(p\) (Wilcoxon)** \\ \hline  & \multicolumn{4}{c}{vowel /o/} \\ \hline PPQ & \(1.14\pm 1.06\) & \(1.68\pm 2.06\) & \(0.54\pm 0.99\) & \(0.047\) \\ APQ & \(11.09\pm 4.41\) & \(14.16\pm 9.94\) & \(3.06\pm 5.53\) & \(0.051\) \\ FLUF & \(2.64\pm 4.32\) & \(5.63\pm 7.24\) & \(2.99\pm 2.91\) & \(0.008\) \\ HNR (Q2) & \(15.49\pm 3.30\) & \(15.28\pm 4.79\) & \(-0.22\pm 1.49\) & \(0.773\) \\ HNR (SD) & \(4.93\pm 1.14\) & \(4.57\pm 1.36\) & \(-0.36\pm 0.21\) & \(0.149\) \\ F1 (CV) & \(0.24\pm 0.19\) & \(0.31\pm 0.22\) & \(0.06\pm 0.03\) & \(0.091\) \\ F2 (CV) & \(0.14\pm 0.10\) & \(0.14\pm 0.10\) & \(0.00\pm 0.01\) & \(0.867\) \\ F3 (CV) & \(8.75\pm 35.36\) & \(23.86\pm 96.34\) & \(15.11\pm 0.97\) & \(0.317\) \\ ER (Q2) & \(8.17\pm 32.52\) & \(8.07\pm 32.42\) & \(-0.10\pm-0.10\) & \(0.989\) \\ ER (CV) & \(0.64\pm 0.39\) & \(0.61\pm 0.36\) & \(-0.03\pm-0.02\) & \(0.705\) \\ F0 (CV) & \(0.40\pm 0.91\) & \(0.63\pm 1.81\) & \(0.24\pm 0.89\) & \(0.434\) \\ GNE (Q2) & \(-0.91\pm 2.72\) & \(-1.25\pm 3.11\) & \(-0.35\pm 0.39\) & \(0.582\) \\ GNE (SD) & \(0.30\pm 0.75\) & \(0.39\pm 0.90\) & \(0.09\pm 0.15\) & \(0.580\) \\ TEO (CV) & \(-0.74\pm 3.27\) & \(-0.28\pm 1.30\) & \(0.46\pm-1.97\) & \(0.376\) \\ NNE (Q2) & \(-0.19\pm 0.79\) & \(-0.11\pm 0.47\) & \(0.09\pm-0.31\) & \(0.530\) \\ NNE (SD) & \(1.62\pm 0.83\) & \(1.58\pm 0.91\) & \(-0.04\pm 0.08\) & \(0.843\) \\ \hline  & \multicolumn{4}{c}{vowel /u/} \\ \hline PPQ & \(1.35\pm 1.17\) & \(2.60\pm 3.07\) & \(1.26\pm 1.90\) & \(0.009\) \\ APQ & \(12.66\pm 5.60\) & \(17.03\pm 9.50\) & \(4.37\pm 3.91\) & \(0.007\) \\ FLUF & \(2.77\pm 5.13\) & \(8.52\pm 9.83\) & \(5.75\pm 4.69\) & \(0.001\) \\ HNR (Q2) & \(15.28\pm 4.23\) & \(14.32\pm 5.22\) & \(-0.96\pm 0.99\) & \(0.270\) \\ HNR (SD) & \(5.40\pm 1.56\) & \(5.08\pm 1.46\) & \(-0.32\pm-0.10\) & \(0.252\) \\ F1 (CV) & \(0.69\pm 0.44\) & \(0.71\pm 0.34\) & \(0.03\pm-0.10\) & \(0.667\) \\ F2 (CV) & \(0.17\pm 0.09\) & \(0.18\pm 0.09\) & \(0.01\pm-0.00\) & \(0.468\) \\ F3 (CV) & \(10.28\pm 52.21\) & \(15.04\pm 104.80\) & \(4.76\pm 52.58\) & \(0.779\) \\ ER (Q2) & \(8.27\pm 33.82\) & \(3.63\pm 25.29\) & \(-4.64\pm-8.53\) & \(0.453\) \\ ER (CV) & \(0.67\pm 0.39\) & \(0.74\pm 0.43\) & \(0.06\pm 0.04\) & \(0.431\) \\ F0 (CV) & \(0.23\pm 0.67\) & \(0.18\pm 0.10\) & \(-0.05\pm-0.57\) & \(0.586\) \\ GNE (Q2) & \(-0.19\pm 1.31\) & \(0.00\pm 0.00\) & \(0.19\pm-1.31\) & \(0.323\) \\ GNE (SD) & \(0.09\pm 0.40\) & \(0.10\pm 0.70\) & \(0.01\pm 0.30\) & \(0.966\) \\ TEO (CV) & \(-0.51\pm 2.69\) & \(-0.07\pm 0.51\) & \(0.43\pm-2.18\) & \(0.275\) \\ NNE (Q2) & \(-1.27\pm 7.09\) & \(-0.31\pm 2.19\) & \(0.96\pm-4.91\) & \(0.373\) \\ NNE (SD) & \(1.57\pm 0.73\) & \(1.68\pm 0.49\) & \(0.11\pm-0.24\) & \(0.379\) \\ \hline \end{tabular}
\end{table} 
Table 2: _Cont._The results of [PERSON]'s partial correlation between the change of baseline acoustic features (\(\Delta\)) and the change in clinical data (\(\Delta\)) can be seen in Table 4. Regarding the change of UPDRS III, it negatively correlated with the change of microperturbations in frequency of voice (PPQ, vowel /i/), aperiodicity (FLUF, vowels /e/./o/), tremor of tongue (F1 (CV), vowels /a/,/u/), tremor of jaw (F2 (CV), vowel /e/), irregular pitch fluctuations (F0 (CV), vowels /a/,/u/), and variation of acoustic noise (NNE (SD), vowel /i/). Significant positive correlations were identified with the change of lips tremor (F3 (CV), vowel /a/), acoustic noise (ER (Q2), vowel /a/), and variation of voice quality (GNE (SD), vowel /e/). In the case of UPDRS IV, we identified seven significant positive correlations with the change of microperturbations in frequency of voice (PPQ, vowel /e/), tremor of jaw (F2 (CV), vowel /a/), irregular amplitude fluctuations (TEO (CV), vowels /a/,/u/), and acoustic noise (NNE (Q2), vowels /o/,/u/).