Table 2.
Featurea | Mean | SD | Min | Q1 | Median | Q3 | Max | |
Second-order statistics |
|
|
|
|
|
|
|
|
|
Max_Max | 49.79 | 48.48 | 1.00 | 25.00 | 40.00 | 60.00 | 621.00 |
|
Min_Max | 5.09 | 6.22 | 0.00 | 2.00 | 4.00 | 6.00 | 90.00 |
|
Mean_Max | 18.56 | 18.94 | 0.75 | 9.23 | 14.07 | 21.62 | 268.29 |
|
Std_Max | 13.14 | 14.05 | 0.00 | 6.14 | 10.45 | 16.22 | 195.19 |
|
Max_Min | 1.59 | 2.08 | 0.00 | 0.00 | 1.00 | 2.00 | 43.00 |
|
Min_Min | 0.06 | 0.27 | 0.00 | 0.00 | 0.00 | 0.00 | 3.00 |
|
Mean_Min | 0.58 | 0.88 | 0.00 | 0.00 | 0.21 | 0.79 | 13.71 |
|
Std_Min | 0.50 | 0.62 | 0.00 | 0.00 | 0.42 | 0.70 | 11.94 |
|
Max_Std | 12.31 | 12.76 | 0.34 | 5.60 | 9.51 | 15.39 | 185.98 |
|
Min_Std | 1.20 | 1.45 | 0.00 | 0.56 | 0.87 | 1.32 | 21.61 |
|
Mean_Std | 4.55 | 4.87 | 0.16 | 2.17 | 3.25 | 5.24 | 70.65 |
|
Std_Std | 3.24 | 3.71 | 0.09 | 1.34 | 2.43 | 4.04 | 62.52 |
|
Max_Mean | 9.32 | 9.34 | 0.17 | 4.38 | 6.88 | 11.04 | 136.10 |
|
Min_Mean | 1.88 | 2.14 | 0.00 | 0.50 | 1.42 | 2.50 | 32.00 |
|
Mean_Mean | 4.42 | 4.19 | 0.07 | 2.19 | 3.40 | 5.28 | 49.55 |
|
Std_Mean | 2.13 | 2.59 | 0.05 | 0.84 | 1.45 | 2.54 | 49.37 |
Multiscale entropy (MSE) |
|
|
|
|
|
|
|
|
|
MSE_1 | 0.80 | 0.46 | 0.05 | 0.42 | 0.71 | 1.13 | 2.44 |
|
MSE_2 | 0.97 | 0.54 | 0.04 | 0.56 | 0.85 | 1.31 | 3.58 |
|
MSE_3 | 1.12 | 0.66 | 0.09 | 0.70 | 1.01 | 1.42 | 9.41 |
|
MSE_4 | 1.23 | 0.69 | 0.05 | 0.82 | 1.15 | 1.51 | 8.83 |
|
MSE_5 | 1.35 | 0.82 | 0.10 | 0.93 | 1.27 | 1.62 | 8.51 |
|
MSE_6 | 1.38 | 0.84 | 0.08 | 0.97 | 1.28 | 1.63 | 8.00 |
|
MSE_7 | 1.47 | 0.97 | 0.10 | 1.01 | 1.33 | 1.70 | 7.72 |
|
MSE_8 | 1.50 | 1.07 | 0.10 | 1.00 | 1.30 | 1.67 | 7.40 |
|
MSE_9 | 1.58 | 1.22 | 0.10 | 0.99 | 1.32 | 1.72 | 7.30 |
|
MSE_10 | 1.58 | 1.23 | 0.08 | 0.97 | 1.30 | 1.72 | 7.08 |
|
MSE_11 | 1.58 | 1.29 | 0.09 | 0.95 | 1.25 | 1.67 | 7.02 |
|
MSE_12 | 1.59 | 1.33 | 0.10 | 0.92 | 1.23 | 1.66 | 6.70 |
|
MSE_13 | 1.74 | 1.46 | 0.11 | 0.98 | 1.30 | 1.79 | 6.55 |
|
MSE_14 | 1.85 | 1.53 | 0.11 | 1.01 | 1.36 | 1.87 | 6.70 |
|
MSE_15 | 1.96 | 1.62 | 0.13 | 1.03 | 1.39 | 1.95 | 6.55 |
|
MSE_16 | 1.98 | 1.62 | 0.13 | 1.03 | 1.39 | 1.95 | 6.40 |
|
MSE_17 | 2.04 | 1.67 | 0.14 | 1.02 | 1.39 | 2.08 | 6.14 |
|
MSE_18 | 2.03 | 1.65 | 0.15 | 1.01 | 1.39 | 2.08 | 6.04 |
|
MSE_19 | 2.09 | 1.69 | 0.17 | 1.01 | 1.39 | 2.08 | 6.04 |
|
MSE_20 | 2.09 | 1.67 | 0.17 | 0.98 | 1.39 | 2.08 | 5.94 |
|
MSE_21 | 2.10 | 1.66 | 0.18 | 0.98 | 1.39 | 2.20 | 5.83 |
|
MSE_22 | 2.13 | 1.68 | 0.18 | 0.98 | 1.39 | 2.30 | 5.83 |
|
MSE_23 | 2.17 | 1.69 | 0.18 | 0.98 | 1.39 | 4.28 | 5.61 |
|
MSE_24 | 2.27 | 1.70 | 0.20 | 0.98 | 1.39 | 4.28 | 5.35 |
Frequency domain (FD) |
|
|
|
|
|
|
|
|
|
LFb_sum | 330.66 | 2469.74 | 0.05 | 17.41 | 53.87 | 184.80 | 85956.16 |
|
MFc_sum | 157.24 | 1166.32 | 0.02 | 8.16 | 25.77 | 83.05 | 34970.35 |
|
HFd_sum | 602.22 | 3272.44 | 0.47 | 55.72 | 151.74 | 403.38 | 64127.16 |
|
LF_pcte | 0.25 | 0.10 | 0.03 | 0.17 | 0.23 | 0.31 | 0.63 |
|
MF_pct | 0.13 | 0.10 | 0.01 | 0.07 | 0.11 | 0.17 | 0.74 |
|
HF_pct | 0.62 | 0.15 | 0.12 | 0.53 | 0.64 | 0.72 | 0.92 |
|
LF_sef | 0.83 | 0.10 | 0.38 | 0.78 | 0.85 | 0.90 | 1.00 |
|
MF_se | 0.82 | 0.09 | 0.40 | 0.77 | 0.83 | 0.88 | 0.99 |
|
HF_se | 0.90 | 0.04 | 0.72 | 0.88 | 0.90 | 0.92 | 0.99 |
aDefinitions of Bluetooth features in this table are shown in Table 1.
bLF: low frequency (0-0.75 cycles/day).
cMF: middle frequency (0.75-1.25 cycles/day).
dHF: high frequency (>1.25 cycles/day).
epct: percentage of spectrum power.
fse: spectral entropy.