## 4 Results and Discussion
\begin{table}
\begin{tabular}{l l l l l l} \hline \hline
**Dataset** & **Feature** & **GBM** & **DT** & **RF** & **XGBoost** \\ \hline \multirow{9}{*}{PCR} & Respiratory distress & 0.141 (0.008) & 0.155 (0.008) & 0.156 (0.008) & 0.144 (0.008) \\  & Vomit & 0.037 (0.004) & 0.036 (0.004) & 0.035 (0.004) & 0.037 (0.004) \\  & Saturation & 0.149 (0.007) & 0.166 (0.008) & 0.161 (0.007) & 0.154 (0.008) \\  & Fatigue & 0.055 (0.006) & 0.047 (0.005) & 0.057 (0.006) & 0.058 (0.006) \\  & Diarrhea & 0.028 (0.003) & 0.024 (0.003) & 0.027 (0.003) & 0.028 (0.003) \\  & Abdominal pain & 0.013 (0.003) & 0.006 (0.002) & 0.011 (0.002) & 0.013 (0.002) \\  & Gender & 0.138 (0.007) & 0.133 (0.007) & 0.137 (0.007) & 0.137 (0.007) \\  & Health professional & 0.029 (0.003) & 0.026 (0.002) & 0.029 (0.003) & 0.031 (0.003) \\  & Fever & 0.235 (0.009) & 0.230 (0.008) & 0.234 (0.008) & 0.230 (0.008) \\  & Sore throat & 0.077 (0.006) & 0.073 (0.005) & 0.075 (0.005) & 0.079 (0.005) \\  & Dyspnoea & 0.098 (0.007) & 0.095 (0.006) & 0.093 (0.007) & 0.092 (0.007) \\  & Smel disorder & 0.009 (0.002) & 0.017 (0.002) & 0.004 (0.002) & 0.010 (0.002) \\  & Cough & 0.105 (0.007) & 0.101 (0.007) & 0.102 (0.007) & 0.102 (0.007) \\  & Runny nose & 0.007 (0.002) & 0.006 (0.002) & 0.007 (0.002) & 0.005 (0.002) \\  & Taste disorder & 0.019 (0.002) & 0.014 (0.002) & 0.009 (0.002) & 0.010 (0.002) \\  & Headache & 0.012 (0.002) & 0.012 (0.002) & 0.013 (0.002) & 0.008 (0.002) \\ \hline \multirow{9}{*}{Rapid} & Respiratory distress & 0.109 (0.007) & 0.113 (0.007) & 0.156 (0.008) & 0.121 (0.008) \\  & Vomit & 0.019 (0.004) & 0.017 (0.003) & 0.015 (0.004) & 0.020 (0.004) \\  & Saturation & 0.140 (0.008) & 0.194 (0.008) & 0.165 (0.008) & 0.154 (0.007) \\  & Fatigue & 0.056 (0.005) & 0.072 (0.006) & 0.055 (0.005) & 0.055 (0.005) \\  & Diarrhea & 0.013 (0.003) & 0.012 (0.003) & 0.009 (0.002) & 0.015 (0.004) \\  & Abdominal pain & 0.004 (0.002) & 0.008 (0.002) & 0.003 (0.001) & 0.007 (0.002) \\  & Gender & 0.096 (0.009) & 0.096 (0.010) & 0.100 (0.009) & 0.095 (0.008) \\  & Health professional & 0.013 (0.003) & 0.014 (0.002) & 0.015 (0.002) & 0.018 (0.003) \\  & Fever & 0.148 (0.008) & 0.158 (0.009) & 0.148 (0.007) & 0.152 (0.007) \\  & Sore throat & 0.080 (0.006) & 0.073 (0.006) & 0.072 (0.006) & 0.075 (0.006) \\  & Dyspnoea & 0.130 (0.008) & 0.144 (0.009) & 0.136 (0.008) & 0.136 (0.008) \\  & Smell disorder & 0.083 (0.005) & 0.096 (0.006) & 0.087 (0.006) & 0.084 (0.005) \\  & Cough & 0.075 (0.007) & 0.086 (0.008) & 0.072 (0.007) & 0.067 (0.008) \\  & Runny nose & 0.054 (0.004) & 0.046 (0.003) & 0.039 (0.003) & 0.048 (0.003) \\  & Taste disorder & 0.042 (0.004) & 0.036 (0.004) & 0.023 (0.004) & 0.039 (0.004) \\  & Headache & 0.047 (0.004) & 0.053 (0.004) & 0.045 (0.004) & 0.055 (0.004) \\ \hline \multirow{9}{*}{Both} & Respiratory distress & 0.140 (0.004) & 0.148 (0.004) & 0.147 (0.004) & 0.143 (0.005) \\  & Vomit & 0.035 (0.003) & 0.041 (0.004) & 0.039 (0.004) & 0.038 (0.003) \\  & Saturation & 0.171 (0.006) & 0.191 (0.005) & 0.190 (0.006) & 0.184 (0.006) \\  & Fatigue & 0.053 (0.003) & 0.062 (0.003) & 0.057 (0.003) & 0.055 (0.003) \\  & Diarrhea & 0.017 (0.002) & 0.017 (0.002) & 0.015 (0.002) & 0.018 (0.002) \\  & Abdominal pain & 0.018 (0.002) & 0.010 (0.002) & 0.010 (0.002) & 0.018 (0.002) \\  & Gender & 0.123 (0.005) & 0.126 (0.006) & 0.121 (0.005) & 0.119 (0.005) \\  & Health professional & 0.020 (0.002) & 0.016 (0.002) & 0.019 (0.002) & 0.020 (0.002) \\  & Fever & 0.182 (0.006) & 0.187 (0.006) & 0.183 (0.007) & 0.179 (0.007) \\  & Sore throat & 0.084 (0.004) & 0.087 (0.004) & 0.082 (0.004) & 0.083 (0.004) \\  & Dyspnoea & 0.103 (0.005) & 0.108 (0.005) & 0.103 (0.005) & 0.107 (0.005) \\  & Smell disorder & 0.047 (0.003) & 0.053 (0.003) & 0.039 (0.003) & 0.048 (0.003) \\  & Cough & 0.086 (0.004) & 0.088 (0.004) & 0.087 (0.005) & 0.084 (0.004) \\  & Runny nose & 0.017 (0.001) & 0.016 (0.001) & 0.017 (0.002) & 0.016 (0.001) \\  & Taste disorder & 0.024 (0.003) & 0.027 (0.003) & 0.019 (0.003) & 0.024 (0.003) \\  & Headache & 0.035 (0.003) & 0.033 (0.002) & 0.028 (0.003) & 0.031 (0.003) \\ \hline \end{tabular}
\end{table}