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. 2021 Mar 30;9(3):e23728. doi: 10.2196/23728

Table 2.

Summary statistics of a subset of features.

Feature Participants, first quartile Participants, median Participants, mean (SD) Participants, third quartile
Mean EDAa 2.0 3.7 4.6 (3.4) 6.3
Mean ECGb 7.2E−04 1.1E−03 1.1E−03 (7.8E−04) 1.5E−03
Mean EMGc −3.5E−03 −3.0E−03 −3.0E−03 (9.2E−04) −2.5E−03
Mean respiration −0.02 0.05 5.4E−02 (2.0E−01) 0.13
Mean temperature 34 34 34 (1.3) 35
Mean ACC_Xd 0.73 0.86 8.0E−01 (1.3E−01) 0.90
Mean ACC_Ye −0.06 −0.02 −3.1E−02 (1.0E−01) 0.02
Mean ACC_Zf −0.54 −0.31 −3.5E−01 (2.6E−01) −0.17

aEDA: electrodermal activity.

bECG: electrocardiogram.

cEMG: electromyogram.

dACC_X: 3-axis acceleration (x-axis).

eACC_Y: 3-axis acceleration (y-axis).

fACC_Z: 3-axis acceleration (z-axis).