Table 5. Correlation analysis between electrocardiogram metrics and PVT performance. |
| Features |
Mean
reaction time |
Median
reaction time |
Fastest
10% reaction time |
Slowest
10% reaction time |
| r |
p |
r |
p |
r |
p |
r |
p |
| Mean
RR |
0.054 |
0.190 |
0.054 |
0.190 |
0.081 |
0.048* |
-0.003 |
0.936 |
| SDNN |
-0.068 |
0.096 |
-0.177 |
<.0001*** |
-0.237 |
<.0001*** |
-0.041 |
0.312 |
| Mean
HR |
-0.197 |
<.0001*** |
-0.068 |
0.096 |
-0.099 |
0.016* |
0.001 |
0.986 |
| SDHR |
-0.217 |
<.0001*** |
-0.197 |
<.0001*** |
-0.299 |
<.0001*** |
-0.020 |
0.620 |
| HR
Max-min |
-0.155 |
<.0001*** |
-0.133 |
0.001** |
-0.245 |
<.0001*** |
0.025 |
0.540 |
| RMSSD |
-0.139 |
<.0001*** |
-0.217 |
<.0001*** |
-0.275 |
<.0001*** |
-0.061 |
0.137 |
| NN50 |
-0.120 |
0.003** |
-0.155 |
<.0001*** |
-0.164 |
<.0001*** |
-0.064 |
0.120 |
| pNN50 |
-0.228 |
<.0001*** |
-0.139 |
<.0001*** |
-0.137 |
0.001** |
-0.067 |
0.100 |
| RR
tri index |
-0.133 |
0.001** |
-0.120 |
0.003** |
-0.122 |
0.003** |
-0.076 |
0.064 |
| TINN |
0.054 |
0.190 |
-0.228 |
<.0001*** |
-0.296 |
<.0001*** |
-0.031 |
0.449 |
| Total
power |
0.025 |
0.541 |
-0.160 |
<.0001*** |
-0.208 |
<.0001*** |
-0.034 |
0.399 |
| peakVLF |
-0.108 |
0.008** |
0.025 |
0.541 |
-0.002 |
0.960 |
0.004 |
0.924 |
| peakLF |
-0.061 |
0.133 |
-0.108 |
0.008** |
0.058 |
0.156 |
-0.168 |
<.0001*** |
| peakHF |
0.036 |
0.384 |
-0.061 |
0.133 |
-0.031 |
0.451 |
-0.008 |
0.848 |
| aVLF |
-0.109 |
0.008** |
0.036 |
0.384 |
-0.124 |
0.002** |
0.130 |
0.001** |
| aLF |
-0.198 |
<.0001*** |
-0.109 |
0.008** |
-0.137 |
0.001** |
-0.022 |
0.590 |
| aHF |
0.068 |
0.094 |
-0.198 |
<.0001*** |
-0.237 |
<.0001*** |
-0.064 |
0.116 |
| VLF(log) |
-0.111 |
0.007** |
0.068 |
0.094 |
-0.121 |
0.003** |
0.174 |
<.0001*** |
| LF(log) |
-0.194 |
<.0001*** |
-0.111 |
0.007** |
-0.111 |
0.006** |
-0.030 |
0.459 |
| HF(log) |
0.252 |
<.0001*** |
-0.194 |
<.0001*** |
-0.182 |
<.0001*** |
-0.071 |
0.082* |
| VLF |
0.082 |
0.045* |
0.252 |
<.0001*** |
0.057 |
0.160 |
0.234 |
<.0001*** |
| LF |
-0.170 |
<.0001*** |
0.082 |
0.045* |
0.111 |
0.006** |
0.007 |
0.867 |
| HF |
0.146 |
<.0001*** |
-0.170 |
<.0001*** |
-0.125 |
0.002** |
-0.093 |
0.022* |
| LF
norm |
-0.145 |
<.0001*** |
0.146 |
<.0001*** |
0.121 |
0.003** |
0.070 |
0.088 |
| HF
norm |
-0.160 |
<.0001*** |
-0.145 |
<.0001*** |
-0.120 |
0.003** |
-0.070 |
0.086 |
| LF/HF |
0.100 |
0.014* |
0.100 |
0.014* |
0.115 |
0.005** |
0.027 |
0.515 |
| DFA
alpha 1 |
0.172 |
<.0001*** |
0.172 |
<.0001*** |
0.169 |
<.0001*** |
0.052 |
0.202 |
| DFA
alpha 2 |
0.164 |
<.0001*** |
0.164 |
<.0001*** |
-0.046 |
0.256 |
0.227 |
<.0001*** |
| SD1 |
-0.234 |
<.0001*** |
-0.234 |
<.0001*** |
-0.280 |
<.0001*** |
-0.069 |
0.092 |
| SD2 |
-0.141 |
<.0001*** |
-0.141 |
<.0001*** |
-0.195 |
<.0001*** |
-0.028 |
0.500 |
| SD2/SD1 |
0.147 |
<.001*** |
0.148 |
<.0001*** |
0.136 |
0.001** |
0.061 |
0.137 |
| ApEn |
0.122 |
0.003** |
0.122 |
0.003** |
0.184 |
<.0001*** |
-0.007 |
0.862 |
| SampEn |
0.097 |
0.017* |
0.097 |
0.017* |
0.198 |
<.0001*** |
-0.039 |
0.346 |
|
|